What is the difference between MEDLINE, PubMed and NLM Gateway?
According the National Library of Medicine’s (NLM) Fact Sheet, PubMed includes the contents of MEDLINE, plus: • In-process citations which provide a record for an article before it is indexed with MeSH and added to MEDLINE or converted to out-of-scope status. • Citations that precede the date that a journal was selected for MEDLINE indexing (when supplied electronically by the publisher). • Some OLDMEDLINE citations that have not yet been updated with current vocabulary and converted to MEDLINE status. • Citations to articles that are out-of-scope (e.g., covering plate tectonics or astrophysics) from certain MEDLINE journals, primarily general science and general chemistry journals, for which the life sciences articles are indexed with MeSH for MEDLINE. • Some life science journals that submit full text to PubMedCentral® and may not yet have been recommended for inclusion in MEDLINE although they have undergone a review by NLM, and some physics journals that were part of a prototype Pu
