The Journal of Korean Medical Science (JKMS) follows the recommendations for authorship by the International Committee of Medical Journal Editors (ICMJE, 2019, http://www.icmje.org) and the Good Publication Practice Guidelines by the Korean Association of Medical Journal Editors (KAMJE, 2019, http://kamje.or.kr). The Uniform Requirements by the ICMJE recommends authorship as follows. “Authorship credit should be based on 1) substantial contributions to conception and design, acquisition of data, or analysis and interpretation of data; 2) drafting the article or revising it critically for important intellectual content; and 3) final approval of the version to be published; and 4) 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. Authors should meet conditions of 1, 2, 3, and 4.” Beyond the ICMJE recommendations, the KAMJE guidelines suggest that all authors should make a substantial intellectual contribution to the publication, the guidelines warn against authorship abuse, and list common types of abuse. Authorship is an important aspect of research publication, and all involved authors should agree whole contents of the document including authorship. Contributors should be differentiated from authors as recommended by the ICMJE.

JKMS accepts notice of equal contribution for the first or corresponding authors when the study was clearly performed by co-first or co-corresponding authors.

JKMS does not allow authorship correction after publication unless the editorial staff made an obvious mistake. Before publication, authorship can be changed in case when all authors request the authorship correction.