Authorship Criteria

YektaPub Criteria for Authorship
- Everyone who has made substantial intellectual contributions to the study on which the article is based (for example, to the research question, design, analysis, interpretation, and written description) should be an author.
- It is dishonest to omit mention of someone who has participated in writing the manuscript (“ghost authorship”) and unfair to omit investigator who have had important engagement with other aspects of the work.
- Only an individual who has made substantial intellectual contributions should be an author.
- Performing technical services, translating text, identifying patients for study, supplying materials, and providing funding or administrative oversight over facilities where the work was done are not, in themselves, sufficient for authorship, although these contributions may be acknowledged in the manuscript.
- It is dishonest to include authors only because of their reputation, position of authority, or friendship (“guest authorship”).
- Many journals publish the names and contributions of everyone who has participated in the work (“contributors”). Not all contributors necessarily qualify for authorship. The nature of each contributors’ participation can be made transparent by a statement, published with the article, of their names and contributions. 
- One author (a “guarantor”) should take responsibility for the integrity of the work as a whole. Often this is the corresponding author, the one who sends in the manuscript and receives reviews, but other authors can have this role. All authors should approve the final version of the manuscript.
- It is preferable that all authors be familiar with all aspects of the work. However, modern research is often done in teams with complementary expertise so that every author may not be equally familiar with all aspects of the work. For example, a biostatistician may have greater mastery of statistical aspects of the manuscript than other authors, but have somewhat less understanding of clinical variables or laboratory measurements. Therefore, some authors’ contributions may be limited to specific aspects of the work as a whole.
- All authors should comply with the journals’ policies on conflict of interest.

Number of Authors
- Editors should not arbitrarily limit the number of authors.
- There are legitimate reasons for multiple authors in some kinds of research, such as multi-center, randomized controlled trials. In these situations, a subset of authors may be listed with the title, with the notation that they have prepared the manuscript on behalf of all contributors, who are then listed in an appendix to the published article.
- A “corporate” author (e.g., a “Group” name) representing all authors in a named study may be listed, as long as one investigator takes responsibility for the work as a whole. In either case, all individuals listed as authors should meet criteria for authorship whether or not they are listed explicitly on the byline.
- If editors believe the number of authors is unusually large, relative to the scope and complexity of the work, they can ask for a detailed description of each author’s contributions to the work. If some do not meet criteria for authorship, editors can require that their names be removed as a condition of publication. 

Order of Authorship
- The authors themselves should decide the order in which authors are listed in an article.
- No one else other than authors knows as well as they do their respective contributions and the agreements they have made among themselves.
- Many different criteria are used to decide order of authorship. Among these are relative contributions to the work and, in situations where all authors have contributed equally, alphabetical or random order.
- Readers cannot know, and should not assume, the meaning of order of authorship unless the approach to assigning order has been described by the authors.
- Authors may want to include with their manuscript a description of how order was decided. If so, editors should welcome this information and publish it with the manuscript.

Authorship Disputes
- Disputes about authorship are best settled at the local level, before journals review the manuscript. However, at their discretion editors may become involved in resolving authorship disputes.
- Changes in authorship at any stage of manuscript review, revision, or acceptance should be accompanied by a written request and explanation from all of the original authors.
- The integrity of the published record of scientific research depends not only on the validity of the science but also on honesty in authorship.
- Editors and readers need to be confident that authors have undertaken the work described and have ensured that the manuscript accurately reflects their work, irrespective of whether they took the lead in writing or sought assistance from a medical writer.
- The scientific record is distorted if the primary purpose of an article is to persuade readers in favor of a special interest, rather than to inform and educate, and this purpose is concealed.

Ghost authorship
Ghost authorship exists when someone has made substantial contributions to writing a manuscript and this role is not mentioned in the manuscript itself. According to YektaPub, ghost authorship is dishonest and unacceptable. Ghost authors generally work on behalf of companies, or agents acting for those companies, with a commercial interest in the topic, and this compounds the problem. For example, a writer employed by a commercial company may prepare an article, then invite an expert in the field to submit the work, perhaps with minor revisions, under his or her own name. The submitting author may be paid, directly or indirectly, for this service. In other circumstances, investigators may pay a professional writer to help them prepare their article but not mention this assistance, gaining credit for writing they have not done. Although editors seek to avoid publication of ghost written articles, these articles are often very difficult to detect.
Submitting authors bear primary responsibility for naming all contributors to manuscripts and describing their contributions. Ghost authorship would be avoided if corresponding authors listed everyone else who participated in the work, including those who contributed only to the writing, along with their individual contributions and institutional affiliations; stated explicitly how the work was paid for; and fully disclosed any further potential competing interests.
However, responsibility for ghost written manuscripts goes beyond individual authors. Other parties, including companies—such as marketing, communications, and medical education companies who are paid to assist pharmaceutical and medical device companies in disseminating favorable messages about their products—may initiate the sequence of events for which the author is the final and most easily identified participant. These other participants are also responsible for ghost written manuscripts and addressing their roles should be part of the solution.
To prevent some instances of ghost authorship, editors should make clear in their journal's information for authors that medical writers can be legitimate contributors and that their roles and affiliations should be described in the manuscript. When editors detect ghost written manuscripts, their actions should involve both the submitting authors and commercial participants if they are involved. Several actions are possible:
  1. publish a notice that a manuscript has been ghost written, along with the names of the responsible companies and the submitting author;
  2. alert the authors' academic institutions, identifying the commercial companies; and
  3. provide specific names if contacted by the popular media or government organizations;
Together, these actions would increase transparency and public accountability about ghost writing and its manipulation of the scientific record and deter others from this practice.