PubMed Central® (PMC) is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM).
PubMedPubMed, developed by the National Library of Medicine, provides access to over 11 million citations from MEDLINE and additional life science journals. It covers the fields of medicine, nursing, dentistry, the health care system, and the preclinical sciences. It is updated 5 times/week.
Medline (Ovid) 1946 - presentThe MEDLINE database is widely recognized as the premier source for bibliographic and abstract coverage of biomedical literature. MEDLINE encompasses information from Index Medicus, Index to Dental Literature, and International Nursing, as well as other sources of coverage in the areas of allied health, biological and physical sciences, humanities and information science as they relate to medicine and health care, communication disorders, population biology, and reproductive biology.
Medline with Full Text (EBSCO)Provides the authoritative medical information on medicine, nursing, dentistry, veterinary medicine, the health care system, and pre-clinical sciences found on MEDLINE, plus the database provides full text for more than 1,470 journals indexed in MEDLINE.