PubMed, a service of the U.S. National Library of Medicine, includes over 18 million citations from MEDLINE and other life science journals for biomedical articles back to the 1950s.
PubMed provides access to bibliographic information that includes MEDLINE, as well as: The out-of-scope citations (e.g., articles on plate tectonics or astrophysics) from certain MEDLINE journals, primarily general science and chemistry journals, for which the life sciences articles are indexed for MEDLINE. Citations that precede the date that a journal was selected for MEDLINE indexing. Some additional life science journals that submit full text to PubMedCentral and receive a qualitative review by NLM.
The National Library of Medicine's database that contains more than 30 million journal articles in the areas of life sciences, healthcare, and biomedicine.
MEDLINE® with Full Text, the National Library of Medicine database, contains more than 17 million references to journal articles in the health sciences. The database provides more than 1,370 journals in fulltext, some dating back to 1949. MEDLINE with Full Text is the definitive research tool for medical literature including nursing, dentistry, veterinary medicine, the health care system, and the preclinical sciences.