MEDLINE

MEDLINE is a bibliographic database of life sciences and biomedical information. It includes bibliographic information for articles from academic journals covering medicine, nursing, pharmacy, dentistry, veterinary medicine, and health... Wikipedia

• Producer:  U.S. National Library of Medicine (United States)
• History:  1879–present
• Languages:  40 languages for current journals, 60 for older journals
• Cost:  Free
• Disciplines:  Medicine, nursing, pharmacy, dentistry, veterinary medicine, health care, biology, biochemistry, molecular evolution, biomedicine, history of medicine, health services research, AIDS, toxicology and environmental health, molecular biology, complementary medicine, behavioral sciences, chemical sciences, bioengineering, health policy development, environmental science, marine biology, plant and animal science, biophysics
• Record depth:  NLM Medical subject headings, abstracts, indexing
• Format coverage:  Mostly academic journals, a small number of newspapers, magazines, and newsletters, over 40% are for cited articles published in the U.S, about 93% are published in English
• Temporal coverage:  1946–present
• Number of records:  Over 29 million
• Update frequency:  Daily, 2,000-4,000 references per update
• Data source:  DuckDuckGo