MEDLINE. Hotline to biomedical information. 1973.
Strash
Ursula
U
D000413:Alaska; D049673:History, 20th Century; D015277:Hotlines; D006801:Humans; D007256:Information Systems; D020407:Internet; D016239:MEDLINE; D009317:National Library of Medicine (U.S.); D014481:United States