Coverage is from 1976 to the present. Medline covers virtually every subject in the broad field of biomedicine. 3,200 journals from 70 countries are indexed and most provide long descriptive abstracts as well. The International Nursing Index is incorporated into the main index. Related fields include microbiology, human and non-human physiology.
Coverage is limited to the current year and two previous years.
All areas of science and engineering are within its scope. Coverage is from 1976 to the present. Psychology and related behavioral and social sciences are included. Coverage is 1974 to the present. Sociofile abstracts over 1600 journals in 30 languages from more than 50 countries.