What is NLMs policy on indexing supplements to MEDLINE journals?
NLM will index supplements to journals if the supplements contain indexable articles, come as part of the journal subscription, and retain the title and volume numbering of the journal. If there is a variation in the title or numbering, the supplement is considered as a separate journal title. If a supplement is sponsored by an outside organization, or reports on a conference or other activity that was sponsored by an outside organization, or is devoted to a special topic that is in any way related to a proprietary product, then the articles in the supplement will not be cited and indexed for MEDLINE unless the supplement includes disclosure information as specified at http://www.nlm.nih.gov/pubs/factsheets/supplements.html.
