Versioning in PubMed
PubMed now supports versioned citations. Revisions, scientific updates, and updates of reviews are examples of content that could be versioned. Versions are not intended for correcting specific errors in an article, for which published errata notices should continue to be used. For more information, visit: https://www.nlm.nih.gov/pubs/techbull/jf12/jf12_pm_versioning.html.