Databases

PubMed comprises more than 26 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites. PubMed contains all information found in MEDLINE as well as additional references not included in the MEDLINE database.

PubMed Central is a free archive of full-text biomedical and life sciences journal articles.