Conflicts of interest in academic publishing
Conflicts of interest (COIs) often arise in academic publishing. Such conflicts may cause wrongdoing and make it more likely. Ethical standards in academic publishing exist to avoid and deal with conflicts of interest, and the field continues to develop new standards. Standards vary between journals and are unevenly applied. According to the International Committee of Medical Journal Editors, "[a]uthors have a responsibility to evaluate the integrity, history, practices and reputation of the journals to which they submit manuscripts".
Conflicts of interest increase the likelihood of biases arising; they can harm the quality of research and the public good (even if disclosed). Conflicts of interest can involve research sponsors, authors, journals, journal staff, publishers, and peer reviewers.
Avoidance, disclosure, and tracking
The avoidance of conflicts of interest and the changing of the structure of institutions to make them easier to avoid are frequently advocated for. Some institutional ethics policies ban academics from entering into specific types of COIs, for instance by prohibiting them from accepting gifts from companies connected with their work. Education in ethical COI management is also a tool for avoiding COI problems.
Disclosure of COIs has been debated since the 1980s; there is a general consensus favouring disclosure. There is also a view that COI concerns and some of the measures taken to reduce them are excessive.
Criticisms of disclosure policies include:
- authors disclosing COIs may feel pressured to present their research in a more biased manner to compensate;
- disclosure may discourage beneficial academic–industrial collaboration;
- disclosure may decrease public trust in research;
- researchers who have disclosed their COIs may feel license to behave immorally;
- disclosure may be taken as a sign of honesty or expertise and thus increase trust;
- some types of COI may be more likely than others to go unnoticed or unreported;
- awareness of a COI does not make people immune to being influenced by bias; generally, people do not sufficiently discount biased advice;
- disclosure discourages the judging of work purely on its merits;
- disclosure causes more intense scrutiny for wrongdoing.
While disclosure is widely favoured, other COI management measures have narrower support. Some publications hold the opinion that certain COIs disqualify people from certain research roles; for instance, that the testing of medicines should be done only by people who neither develop medicines nor are funded by their manufacturers.
Conflicts of interest have also been considered as a statistical factor confounding evidence, which must therefore be measured as accurately as possible and analysed, requiring machine-readable disclosure.
Codes of conduct
Journals have individual ethics policies and codes of conduct; there are also some cross-journal voluntary standards.
The International Committee of Medical Journal Editors (ICMJE) publishes Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly work in Medical Journals, and a list of journals that pledge to follow it. The guideline lays down detailed rules for conflict-of-interest declaration by authors. It also says; "All participants in the peer-review and publication process—not only authors but also peer reviewers, editors, and editorial board members of journals—must consider their conflicts of interest when fulfilling their roles in the process of article review and publication and must disclose all relationships that could be viewed as potential conflicts of interest". These recommendations have been criticized and revised to remove loopholes allowing the non-disclosure of conflicts of interest.
The Council of Science Editors publishes a White Paper on publication ethics. Citing the ICMJE that "all participants in the peer-review and publication process must disclose all relationships that could be viewed as potential conflicts of interest", it highly recommends COI disclosure for sponsors, authors, reviewers, journals, and editorial staff.
The Committee on Publication Ethics (COPE) publishes a code of conduct stating, "[t]here must be clear definitions of conflicts of interest and processes for handling conflicts of interest of authors, reviewers, editors, journals and publishers, whether identified before or after publication".
The Open Access Scholarly Publishers Association's Principles of Transparency and Best Practice in Scholarly Publishing is intended to separate legitimate journals from predatory publishers and defines a minimal standard; clear and clearly stated COI policies.
A 2009 US Institute of Medicine report on medical COIs states that conflict-of-interest policies should be judged on their proportionality, transparency, accountability, and fairness; they should be effective, efficient, and targeted, known and understood, clearly identify who is responsible for monitoring, enforcement, and amendment, and apply equally to everyone involved. Review by conflict-of-interest committees is also recommended, and the lack of transparency and COI declaration in developing COI guidelines criticized.
As of 2015, journal COI policies often have no enforcement provisions. COI disclosure obligations have been legislated; one example of such legislation is the US Physician Payments Sunshine Act, but these laws do not apply specifically to journals.
COIs by agent
COIs of journals
Journals are often not transparent about their institutional COIs, and do not apply the same disclosure standards to themselves as they do to their authors. Four out of six major general medical journals that were contacted for a 2010 COI study refused to provide information about the proportion of their income that derived from advertisements, reprints, and industry-supported supplements, citing policies on non-disclosure of financial information.
Owners and governing bodies
The owner of an academic journal has ultimate power over the hiring and firing of editorial staff; editors' interests in pleasing their employers conflict with some of their other editorial interests. Journals are also more likely to accept papers by authors who work for the journals' hosting institutions.
Some journals are owned by publishers. When journals print reviews of books published by their own publishers, they rarely (as of 2013) add COI disclosures. The publishers' interest in maximizing profit will often conflict with academic interests or ethical standards. In the case of closed-access publications, publishers' desire for high subscription income may conflict with an editorial desire for broader access and readership. There have been multiple mass resignations of editorial boards over such conflicts, which are often followed by the editorial board founding a new, non-profit journal to compete with their former one.
Some journals are owned by academic societies and professional organisations. Leading journals can be very profitable and there is often friction about revenue between the journal and the member society that owns it. Some academic societies and professional organisations are themselves funded by membership fees and/or donations. If the owners benefit financially from donations, the journal has a conflict between its financial interest in satisfying the donors—and therefore the owners—and its journalistic interests. Such COIs with industry donors have drawn criticism.
A reprint is a copy of an individual article that is printed and sold as a separate product by the journal or its publisher or agent. Reprints are often used in pharmaceutical marketing and other medical marketing of products to doctors. This gives journals an incentive to produce good marketing material. Journals sell reprints at very high profit margins, often around 70%, as of 2010. A journal may sell a million dollars worth of reprints of a single article if, for example, it is a large industry-funded clinical trial. The selling of reprints can bring in over 40% of a journal's income.
Impact factors, reputation, and subscriptions
The impact factor of a journal is often used to rate it, although this practice is widely criticized. A journal will generally want to increase its impact factor in hope of gaining more subscriptions, better submissions, and more prestige. As of 2010, industry-funded papers generally get cited more than others; this is probably due in part to industry-paid publicity.
Some journals engage in coercive citation, in which an editor forces an author to add extraneous citations to an article to inflate the impact factor of the journal in which the extraneous papers were published. A survey found that 86% of academics consider coercive citation unethical but 20% have experienced it. Journals appear to preferentially target younger authors and authors from non-English-speaking countries. Journals published by for-profit companies used coercive citation more than those published by university presses.
Many academic journals contain advertising. The portion of a journal's revenue coming from advertising varies widely, according to one small study, from over 50% to 1%. As of 2010, advertising revenues for academic journals are generally falling. A 1995 survey of North American journal editors found that 57% felt responsible for the honesty of the pharmaceutical advertisements they ran and 40% supported peer-review of such advertisements. An interest in increasing advertising revenue can conflict with interests in journalistic independence and truthfulness.
As of 2002, some journals publish supplements that often either cover an industry-funded conference or are "symposia" on a given topic. These supplements are often subsidized by an external sponsor with a financial interest in the outcome of research in that field; for instance, a drug manufacturer or food industry group. Such supplements can have guest editors, are often not peer-reviewed to the same standard as the journal itself, and are more likely to use promotional language. Many journals do not publish sponsored supplements. Small-circulation journals are more likely to publish supplements than large, high-prestige journals. Indications that an article was published in a supplement may be fairly subtle; for instance, a letter "s" added to a page number.
The ICMJE code of conduct specifically addresses guest-editor COIs; "Editors should publish regular disclosure statements about potential conflicts of interests related to their own commitments and those of their journal staff. Guest editors should follow these same procedures." It also states that the usual journal editor must maintain full control and responsibility and that "Editing by the funding organization should not be permitted".
The US Food and Drug Administration states that supplement articles should not be used as medical-marketing reprints but as of 2009 it had no legal authority to prohibit the practice.
Publishers may not be strongly motivated to ensure the quality of their journals. In the Australasian Journal of Bone & Joint Medicine case, the printer Elsevier Australia put out six journal-like publications containing articles about drugs made by the Merck Group, which paid for and controlled the publications.
COIs of journal staff
Personal conflicts of interest faced by journal staff are individual. If a person leaves the journal—unlike the COIs of journals as institutions—their personal COIs will go with them.
As of 2015, COIs of journal staff are less commonly reported than those of authors. For instance, one 2009 World Association of Medical Editors (WAME) policy document states, "Some journals list editors' competing interests on their website but this is not a standard practice". The ICMJE, however, requires that the COIs of editors and journal staff be regularly declared and published.
One 2017 Open Payments study of influential US medical journals found half of the editors received payments from industry; another study that used a different sample of editors reported two-thirds. As of 2002, systems for reporting wrongdoing by editors often do not exist.
Many journals have policies limiting COIs staff can enter into; for instance, accepting gifts of travel, accommodation, or hospitality may be prohibited. As of 2016, such policies are rarely published. Most journals do not offer COI training; as of 2015, many journals report a desire for better guidance on COI policy.
COIs of peer reviewers
The ICJME recommendations require peer reviewers to disclose conflicts of interest. Half to two-thirds of journals, depending on subject area, did not follow this recommendation in the first two decades of the 21st century. As of 2017, if a peer reviewer fails to disclose a conflict of interest, the paper will generally not be withdrawn, corrected, or re-reviewed; the reviews, however, may be reassessed.
If peer reviewers are anonymous, their COIs cannot be published. Some experiments with publishing the names of reviewers have been undertaken; in others, the identities of reviewers were disclosed to authors, allowing authors to identify COIs. Some journals now have an open review process in which everything, including the peer reviews and the names of the reviewers, and editor and author comment, is published transparently online.
The duties of peer review may conflict with social interests or institutional loyalties; to avoid such COIs, reviewers may be excluded if they have some forms of COI, such as having collaborated with the author.
Readers of academic papers may spot errors, informally or as part of formal post-publication peer review. Academics submitting corrections to papers are often asked by the publishers to pay over 1,000 US dollars for the publication of their corrections.
COIs of article authors
Authors of individual papers may face conflicts with their duty to report truthfully and impartially. Financial, career, political, and social interests are all sources of conflict. Authors' institutional interests become sources of conflict when the research might harm the institution's finances or offend the author's superiors.
Many journals require authors to self-declare their conflicts of interest when submitting a paper; they also ask specific questions about conflicts of interest. The questions vary substantially between journals. Author declarations, however, are rarely verified by the journal. As of 2018, "most editors say it's not their job to make sure authors reveal financial conflicts, and there are no repercussions for those who don't". Even if a conflict of interest is reported by a reader after publication, COPE does not suggest independent investigation, as of 2017.
The COPE retraction guidelines state, "Retractions are also used to alert readers to ... failure to disclose a major competing interest likely to influence interpretations or recommendations". As of 2018, however, if an author fails to disclose a COI, the paper will usually be corrected; it will not usually be retracted. Paper retractions, notifications to superiors, and publication bans are possible. Non-disclosure incidents harm academic careers. Authors are held to have collective responsibility for the contents of an article; if one author fails to declare a conflict of interest, the peer review process may be deemed compromised and the whole paper retracted.
Ghost authors and non-contributing authors
Ghost authorship, where a writer contributes but is not credited, has been estimated to affect a significant proportion of the research literature. Honorary authorship, where an author is credited but did not contribute, is more common. Being named as an author on many papers is good for an academic's career. Failure to adhere to authorship standards is rarely punished. To avoid misreported authorship, a requirement that all authors describe the contribution they made to the study ("movie-style credits") has been advocated for. Ghostwriters may be legally liable for fraud.
The ICMJE criteria for authorship require that authors contribute:
- Substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data for the work; and
- Drafting the work or revising it critically for important intellectual content; and
- Final approval of the version to be published; and
- Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
The ICMJE requires that "All those designated as authors should meet all four criteria for authorship, and all who meet the four criteria should be identified as authors. Those who do not meet all four criteria should be acknowledged." Academics who have had publication ethics training and those who are aware of the ICMJE authorship criteria are more stringent in their concepts of authorship and are more likely to consider breaches of authorship as misconduct, as are more junior researchers. Awareness is low; one study found only about half of researchers had read the ICJME criteria.
COIs of study sponsors
If a study requires outside funding, this can be a major source of conflicting interests; for instance in cases where the manufacturer of a drug is funding a study into its safety and efficacy or where the sponsor hopes to use the research to defend itself in litigation. Sponsors of a study may involve themselves in the design, execution, analysis, and write-up of a study. In extreme cases, they may carry out the research and ghostwrite the article with almost no involvement from the nominal author. Movie-style credits are advocated as a way to avoid this.
There are many opportunities for bias in trial design and trial reporting. For instance, a trial that compares a drug against the wrong dose of a competing drug may produce spuriously positive results.
In some cases, a contract with a sponsor may mean those named as investigators and authors on the papers may not have access to the trial data, control over the publication text, or the freedom to talk about their work. While authors and institutions have an interest in avoiding such contracts, it conflicts with their interest in competing for funding from potential study sponsors. Institutions that set stricter ethical standards for sponsor contracts lose contracts and funding when sponsors go elsewhere.
Sponsors have required contractual promises that the study is not reported without the sponsor's approval (gag clauses) and some have sued authors over compliance. Trials may go unpublished to keep commercial information secret or because the trial results were unfavourable. Some journals require that human trials be registered to be considered for publication; some require the declaration of any gag clauses as a conflict of interest;:4 since 2001, some also require a statement that the authors have not agreed to a gag clause. Some journals require a promise to provide access to the original data to researchers intending to replicate the work. Some research ethics boards, universities, and national laws prohibit gag clauses. Gag clauses may not be legally enforceable if compliance would cause sufficient public harm. Non-publication has been found to be more common in industry-funded trials, contributing to publication bias.
Effect on conclusions of research
There is evidence that industry funding of studies of medical devices and drugs results in these studies having more positive conclusions regarding efficacy (funding bias). A similar relationship has been found in clinical trials of surgical interventions, where industry funding leads to researchers exaggerating the positive nature of their findings. Not all studies have found a statistically significant relationship between industry funding and the study outcome.
Interests of research participants
Chronically ill medical research participants report expectation of being told about COIs and some report they would not participate if the researcher had some sorts of COIs. With few exceptions, multiple ethical guidelines forbid researchers with a financial interest in the outcome from being involved in human trials.
Ethical rules, including the Declaration of Helsinki, require the publication of results of human trials. participants in which are often motivated by a desire to improve medical knowledge. Patients may be harmed if safety data, such risks to patients, are kept secret. Duties to human-research participants can therefore conflict with interests in non-publication such as gag clauses.
Publication of COI declarations
Some journals place COI declarations at the beginning of an article but most put it in smaller print at the end. Positioning makes a difference; if readers feel they are being manipulated from the beginning of a text, they read more critically than if the same feeling is produced at the end of a text.
According to the ICMJE, "each journal should develop standards with regard to the form the [COI] information should take and where it will be posted". It is often placed after the body of the article, just before the reference section. Some COI statements, like those of anonymous reviewers, may not be published at all. COI statements are sometimes paywalled so they are only visible to those who have paid for full text access. This is not considered ethical by the Committee on Publication Ethics.
In 2017 PubMed began including COI statements at the end of the abstract and before the body of the article after receiving complaints that because COI declarations were only included in full article texts, they often went unseen in paywalled articles. Only COI statements that are appropriately formatted and tagged by the publisher are included.
Science journalism rarely reports COI information from the academic article reported upon; in some studies, fewer than 1% of stories included COI information.
False statements of COIs
Failure to disclose a conflict of interest may, depending on the circumstances, be considered a form of corruption or academic misconduct.
- Fees, F. (2016), Recommendations for the conduct, reporting, editing, and publication of scholarly work in medical journals (PDF) Conflicts-of-interest section, [Last update on 2015 Dec].
- Dunn, Adam G.; Coiera, Enrico; Mandl, Kenneth D.; Bourgeois, Florence T. (2016-05-03). "Conflict of interest disclosure in biomedical research: a review of current practices, biases, and the role of public registries in improving transparency". Research Integrity and Peer Review. 1: 1. doi:10.1186/s41073-016-0006-7. PMC 4854425. PMID 27158530.
- Institute of Medicine (US) Committee on Conflict of Interest in Medical Research, Education, and Practice (2009). Lo, Bernard; Field, Marilyn J. (eds.). Conflict of Interest in Medical Research, Education, and Practice. The National Academies Collection: Reports funded by National Institutes of Health. Washington (DC): National Academies Press (US). ISBN 978-0-309-13188-9. PMID 20662118.CS1 maint: multiple names: authors list (link)
- Rosenbaum, Lisa (2015-05-21). "Beyond Moral Outrage — Weighing the Trade-Offs of COI Regulation". New England Journal of Medicine. 372 (21): 2064–2068. doi:10.1056/NEJMms1502498. PMID 25992752.
- Loder, Elizabeth; Brizzell, Catherine; Godlee, Fiona (2015-06-02). "Revisiting the commercial-academic interface in medical journals". BMJ. 350: –2957. doi:10.1136/bmj.h2957. PMID 26037508. Retrieved 2018-03-29.
- Matheson, Alastair (2011-08-09). "How Industry Uses the ICMJE Guidelines to Manipulate Authorship—And How They Should Be Revised". PLOS Medicine. 8 (8): –1001072. doi:10.1371/journal.pmed.1001072. PMC 3153455. PMID 21857808.
- Council of Science Editors' Editorial Policy Committee (2011-2012) (2012-03-30). White Paper on Publication Ethics (2012 update). Council of Science editors. Retrieved 2018-04-30.
- Battisti, Wendy P.; Wager, Elizabeth; Baltzer, Lise; Bridges, Dan; Cairns, Angela; Carswell, Christopher I.; Citrome, Leslie; Gurr, James A.; Mooney, LaVerne A.; Moore, B. Jane; Peña, Teresa; Sanes-Miller, Carol H.; Veitch, Keith; Woolley, Karen L.; Yarker, Yvonne E. (2015-09-15). "Good Publication Practice for Communicating Company-Sponsored Medical Research: GPP3". Annals of Internal Medicine. 163 (6): 461–4. doi:10.7326/M15-0288. PMID 26259067. (institutional link)
- Committee on Publication Ethics (COPE), Core practices, retrieved 2018-04-30
- Laine, Christine; Winker, Margaret A. (2017-02-18). "Identifying Predatory or Pseudo-Journals". Retrieved 2018-03-28.
- Redhead, Claire (2013-12-19). "Principles of Transparency and Best Practice in Scholarly Publishing - OASPA". Retrieved 2018-03-28.
- Kojima, Takako; Green, Joseph; Barron, J. Patrick (2015-08-01). "Conflict-of-interest disclosure at medical journals in Japan: a nationwide survey of the practices of journal secretariats". BMJ Open. 5 (8): –007957. doi:10.1136/bmjopen-2015-007957. PMC 4554913. PMID 26310399. Retrieved 2018-03-29.
- Editors, The PLoS Medicine (2010-10-26). "Increased Responsibility and Transparency in an Era of Increased Visibility". PLOS Medicine. 7 (10): –1000364. doi:10.1371/journal.pmed.1000364. PMC 2964334. PMID 21048984.
- Lundh, Andreas; Barbateskovic, Marija; Hróbjartsson, Asbjørn; Gøtzsche, Peter C. (2010-10-26). "Conflicts of Interest at Medical Journals: The Influence of Industry-Supported Randomised Trials on Journal Impact Factors and Revenue – Cohort Study". PLOS Medicine. 7 (10): –1000354. doi:10.1371/journal.pmed.1000354. PMC 2964336. PMID 21048986.
- Fletcher, Suzanne W; Fletcher, Robert H (March 1999). "Medical Editors, Journal Owners, and the Sacking of George Lundberg" (PDF). Journal of General Internal Medicine. 14 (3): 200–202. doi:10.1046/j.1525-1497.1999.00347.x. PMC 1496545. PMID 10203629.
- Ray, J. G. (2002-12-01). "Judging the judges: the role of journal editors". QJM: An International Journal of Medicine. 95 (12): 769–774. doi:10.1093/qjmed/95.12.769. PMID 12454319.
- Marcovitch, Harvey (2010-10-26). "Editors, Publishers, Impact Factors, and Reprint Income". PLOS Medicine. 7 (10): –1000355. doi:10.1371/journal.pmed.1000355. PMC 2964337. PMID 21048987.
- Reingewertz, Yaniv; Lutmar, Carmela (2017-04-05). Academic In-Group Bias: An Empirical Examination of the Link between Author and Journal Affiliation. SSRN 2946811.
- Flaherty, Coleen (2018-03-02). "Study finds evidence of institutional favoritism in academic publishing". Retrieved 2018-03-27.
- Davis, Ronald M.; Neale, Anne Victoria; Monsur, Joseph C. (December 2003). "Medical journals' conflicts of interest in the publication of book reviews". Science and Engineering Ethics. 9 (4): 471–483. doi:10.1007/s11948-003-0045-6. PMID 14652900.
- Peter Suber; et al., "Journal declarations of independence", Open Access Directory, retrieved 2018-03-28
- Mark C. Wilson (2016-10-08). "What happens to journals that break away?". Filling a much-needed gap. Retrieved 2018-03-28.
- Hoey, John (1999-09-07). "When journals are branded, editors get burnt: the ousting of Jerome Kassirer from the New England Journal of Medicine". Canadian Medical Association Journal. 161 (5): 529–530. PMC 1230583. PMID 10497610. Retrieved 2018-03-27.
- Smith, Richard (2010-11-02). "Richard Smith on editors' conflicts of interest – The BMJ". Retrieved 2018-03-29.
- Nestle, Marion (23 June 2015). "Conflicts of interest in nutrition societies: American Society of Nutrition". Marion Nestle. Retrieved 20 November 2013.
- Commissioner, Office of the (January 2009), Good Reprint Practices for the Distribution of Medical Journal Articles and Medical or Scientific Reference Publications on Unapproved New Uses of Approved Drugs and Approved or Cleared Medical Devices (FDA Guidance Document), retrieved 2018-04-30
- Ornstein, Charles (2016-04-05). "Amid Public Feuds, A Venerated Medical Journal Finds…" (text/html). ProPublica. Retrieved 2018-03-29.
- Wilhite, A. W.; Fong, E. A. (2012). "Coercive Citation in Academic Publishing". Science. 335 (6068): 542–3. Bibcode:2012Sci...335..542W. doi:10.1126/science.1212540. PMID 22301307.
- Smith, Richard (1997). "Journal accused of manipulating impact factor". BMJ. 314 (7079): 463. doi:10.1136/bmj.314.7079.461d. PMC 2125988. PMID 9056791.
- Wilhite, A. W.; Fong, E. A. (2012). "Coercive Citation in Academic Publishing". Science. 335 (6068): 542–3. Bibcode:2012Sci...335..542W. doi:10.1126/science.1212540. PMID 22301307.
- Allison, David B.; Brown, Andrew W.; George, Brandon J.; Kaiser, Kathryn A. (4 February 2016). "Reproducibility: A tragedy of errors". Nature News. 530 (7588): 27–9. doi:10.1038/530027a. PMC 4831566. PMID 26842041.
- "Retraction challenges". Nature News. 514 (7520): 5. 2 October 2014. doi:10.1038/514005a. PMID 25279879.
- Flanagin, Annette; Carey, Lisa A.; Fontanarosa, Phil B.; Phillips, Stephanie G.; Pace, Brian P.; Lundberg, George D.; Rennie, Drummond (1998-07-15). "Prevalence of Articles With Honorary Authors and Ghost Authors in Peer-Reviewed Medical Journals". JAMA. 280 (3): 222–224. doi:10.1001/jama.280.3.222. PMID 9676661.
- Nestle, Marion (2 January 2007). "Food company sponsorship of nutrition research and professional activities: a conflict of interest?" (PDF). Public Health Nutrition. 4 (5): 1015–1022. doi:10.1079/PHN2001253. PMID 11784415.
- Goldacre, Ben (May 9, 2009). "The danger of drugs … and data". The Guardian. London. ISSN 0261-3077. Archived from the original on 17 November 2009. Retrieved Nov 20, 2009.
- "Conflict of Interest in Peer-Reviewed Medical Journals". 2009. Retrieved 2018-03-28.
- Liu, Jessica J.; Bell, Chaim M.; Matelski, John J.; Detsky, Allan S.; Cram, Peter (2017-10-26). "Payments by US pharmaceutical and medical device manufacturers to US medical journal editors: retrospective observational study". BMJ. 359: –4619. doi:10.1136/bmj.j4619. PMC 5655612. PMID 29074628. Retrieved 2018-03-28.
- McCook, Author Alison (2017-11-08). "Most editors of top medical journals receive industry payments: report". Retraction Watch. Retrieved 2018-03-28.
- Bastian, Hilda (December 2006). "'They would say that, wouldn't they?' A reader's guide to author and sponsor biases in clinical research". Journal of the Royal Society of Medicine. 99 (12): 611–614. doi:10.1258/jrsm.99.12.611. PMC 1676333. PMID 17139062.
- Resnik, David B.; Elmore, Susan A. (February 2018). "Conflict of Interest in Journal Peer Review". Toxicologic Pathology. 46 (2): 112–114. doi:10.1177/0192623318754792. PMC 5825276. PMID 29382273.
- Stern, Author Victoria (2017-08-15). "What should journals do when peer reviewers do not disclose potential conflicts?". Retraction Watch. Retrieved 2018-03-28.
- Smith, Richard (April 2006). "Peer review: a flawed process at the heart of science and journals". Journal of the Royal Society of Medicine. 99 (4): 178–182. doi:10.1258/jrsm.99.4.178. PMC 1420798. PMID 16574968.
- "Financial transparency skin-deep at medical journals". Reuters. 2011-06-08. Retrieved 2018-03-27.
- Cynthia Clerk (2017-11-02). "What to do if a reader suspects undisclosed conflict of interest (CoI) in a published article | Committee on Publication Ethics: COPE". Retrieved 2018-03-28.
- Carey, Benedict (2006-07-25). "Correcting the Errors of Disclosure". The New York Times. Retrieved 2018-03-27.
- Wager, Elizabeth; Barbour, Virginia; Yentis, Steven; Kleinert, Sabine (2009). "Retractions: guidance from the Committee on Publication Ethics (COPE)". Maturitas. 64 (4): 201–203. doi:10.1016/j.maturitas.2009.09.018. PMC 2802086. PMID 19954902.
- Stern, Author Victoria (2018-01-17). "Journal retracts letter for missing disclosure author says he tried to submit". Retraction Watch. Retrieved 2018-03-27.
- Sillender, Mark (2012-01-10). "Why not switch to movie-style credits for research papers?". BMJ. 344: –179. doi:10.1136/bmj.e179. PMID 22235015. Retrieved 2018-03-28.
- Stern, Simon; Lemmens, Trudo (2011-08-02). "Legal Remedies for Medical Ghostwriting: Imposing Fraud Liability on Guest Authors of Ghostwritten Articles". PLOS Medicine. 8 (8): –1001070. doi:10.1371/journal.pmed.1001070. PMC 3149079. PMID 21829331.
- Bosch, Xavier; Esfandiari, Bijan; McHenry, Leemon (2012-01-24). "Challenging Medical Ghostwriting in US Courts". PLOS Medicine. 9 (1): –1001163. doi:10.1371/journal.pmed.1001163. PMC 3265530. PMID 22291578.
- amarcus41, Author (2012-02-14). "Amid lawsuits, toxicology journal corrects four asbestos papers for failure to cite author links to Georgia-Pacific". Retraction Watch. Retrieved 2018-03-29.
- Smith, Richard (2005). "Medical Journals Are an Extension of the Marketing Arm of Pharmaceutical Companies". PLOS Medicine. 2 (5): e138. doi:10.1371/journal.pmed.0020138. PMC 1140949. PMID 15916457.
- Steinbrook, Robert (2005-05-26). "Gag Clauses in Clinical-Trial Agreements". New England Journal of Medicine. 352 (21): 2160–2162. doi:10.1056/NEJMp048353. PMID 15917381.
- Davidoff, Frank; DeAngelis, Catherine D.; Drazen, Jeffrey M.; Hoey, John; Højgaard, Liselotte; Horton, Richard; Kotzin, Sheldon; Nicholls, M. Gary; Nylenna, Magne; Overbeke, A. John P.M.; Sox, Harold C.; Van Der Weyden, Martin B.; Wilkes, Michael S. (2001-09-13). "Sponsorship, Authorship, and Accountability". New England Journal of Medicine. 345 (11): 825–827. doi:10.1056/NEJMed010093. ISSN 0028-4793. PMC 81460. PMID 11556304.
- Meier, Barry (2004-11-29). "Contracts Keep Drug Research Out of Reach". The New York Times. ISSN 0362-4331. Retrieved 2018-06-07.
- Schafer, A. (2004-02-01). "Biomedical conflicts of interest: a defence of the sequestration thesis—learning from the cases of Nancy Olivieri and David Healy". Journal of Medical Ethics. 30 (1): 8–24. doi:10.1136/jme.2003.005702. PMC 1757130. PMID 14872066. Retrieved 2018-04-30.
- Mello, Michelle M.; Clarridge, Brian R.; Studdert, David M. (2005-05-26). "Academic Medical Centers' Standards for Clinical-Trial Agreements with Industry". New England Journal of Medicine. 352 (21): 2202–2210. doi:10.1056/NEJMsa044115. PMID 15917385.
- Jones, Christopher W.; Handler, Lara; Crowell, Karen E.; Keil, Lukas G.; Weaver, Mark A.; Platts-Mills, Timothy F. (2013-10-29). "Non-publication of large randomized clinical trials: cross sectional analysis". BMJ. 347: –6104. doi:10.1136/bmj.f6104. PMC 3812466. PMID 24169943. Retrieved 2018-03-29.
- Thomas, Katie (2013-06-29). "Breaking the Seal on Drug Research". The New York Times. Retrieved 2018-03-29.
- Hall, Richard; de Antueno, Cecilia; Webber, Adam (May 2007). "Publication bias in the medical literature: A review by a Canadian research ethics board". Canadian Journal of Anesthesia. 54 (5): 380–388. doi:10.1007/BF03022661. PMID 17470890.
- Groves, Trish (2008-01-24). "Mandatory disclosure of trial results for drugs and devices". BMJ. 336 (7637): 170. doi:10.1136/bmj.39469.465139.80. PMC 2213793. PMID 18219000. Retrieved 2018-04-30.
- Lundh, Andreas; Lexchin, Joel; Mintzes, Barbara; Schroll, Jeppe B.; Bero, Lisa (2017-02-16). "Industry sponsorship and research outcome". Cochrane Database of Systematic Reviews. 2: MR000033. doi:10.1002/14651858.mr000033.pub3. PMID 28207928.
- Probst, Pascal; Knebel, Phillip; Grummich, Kathrin; Tenckhoff, Solveig; Ulrich, Alexis; Büchler, Markus W.; Diener, Markus K. (July 2016). "Industry Bias in Randomized Controlled Trials in General and Abdominal Surgery". Annals of Surgery. 264 (1): 87–92. doi:10.1097/sla.0000000000001372. ISSN 0003-4932. PMID 26465782.
- Chartres, Nicholas; Fabbri, Alice; Bero, Lisa A. (2016-12-01). "Association of Industry Sponsorship With Outcomes of Nutrition Studies". JAMA Internal Medicine. 176 (12): 1769–1777. doi:10.1001/jamainternmed.2016.6721. ISSN 2168-6106. PMID 27802480.
- Voineskos, Sophocles H.; Coroneos, Christopher J.; Ziolkowski, Natalia I.; Kaur, Manraj N.; Banfield, Laura; Meade, Maureen O.; Chung, Kevin C.; Thoma, Achilleas; Bhandari, Mohit (February 2016). "A Systematic Review of Surgical Randomized Controlled Trials". Plastic and Reconstructive Surgery. 137 (2): 453e–461e. doi:10.1097/01.prs.0000475767.61031.d1. ISSN 0032-1052. PMID 26818335.
- Mello, Michelle M.; Joffe, Steven (2007). "Compact versus Contract-Industry Sponsors' Obligations to Their Research Subjects". New England Journal of Medicine. 356 (26): 2737–43. doi:10.1056/NEJMhle067499. PMID 17596610.
- Research, Center for Drug Evaluation and (2014-11-06). "Information for Consumers (Drugs) - Inside Clinical Trials: Testing Medical Products in People" (WebContent). FDA.gov. Retrieved 2018-03-29.
- Silvia, Paul J. (2006). "Reactance and the dynamics of disagreement: Multiple paths from threatened freedom to resistance to persuasion" (PDF). European Journal of Social Psychology. 36 (5): 673–685. doi:10.1002/ejsp.309.
- Belluz, Julia (2017-04-19). "Too many studies have hidden conflicts of interest. A new tool makes it easier to see them". Vox. Retrieved 2018-06-07.
- amarcus41, Author (2013-11-06). ""Personal rivalry" leads to retraction of nut-health paper". Retraction Watch. Retrieved 2018-03-30.
- Office of Richard Blumenthal (United States Senator) (2016-03-30). "Blumenthal, Colleagues Urge Clear Disclosure of Conflicts of Interest in Scientific Papers" (Press release). Retrieved 2018-06-07.
- Robertson, Christopher (20 April 2017). "Conflict of Interests Disclosures Come to PubMed". Bill of Health. Petrie-Flom Center, Harvard Law School.
- Independent Commission Against Corruption. "Knowing your risks". Retrieved 2018-04-30.
- Koocher, Gerald P.; Keith-Spiegel, Patricia (July 22, 2010). "Peers nip misconduct in the bud". Nature. 466 (7305): 438–440. doi:10.1038/466438a. ISSN 0028-0836. PMID 20651674.