NLM MEDLINE file
U.S. National Library of Medicine
MEDLINE contains information on every area of medicine, e g. biomedical research and clinical studies, biochemistry, bioethics, dental medicine, nursery, pharmacy, psychology, public health, space medicine, toxicology, and veterinary medicine. Over 99% of MEDLINE‘s records are references to journal articles. Coverage begins in 1946, with currently nearly 30 million records. Features in- clude the MeSH thesaurus.