title: Information sources for physicians.
mesh_terms: D006077:Government Agencies; D006801:Humans; D007255:Information Services; D007256:Information Systems; D009316:National Institutes of Health (U.S.); D009317:National Library of Medicine (U.S.); D009862:Online Systems; D010506:Periodicals as Topic; D010820:Physicians; D014481:United States