Using the telephone for cancer information.
Poe
M R
MR
Cancer Information Service Central Support, Rockville, Maryland, USA.
DeVore
L M
LM
D000570:American Cancer Society; D003195:Computer Communication Networks; D005582:Foundations; D015277:Hotlines; D006801:Humans; D007255:Information Services; D009316:National Institutes of Health (U.S.); D009369:Neoplasms / Q000517:prevention & control*; D014481:United States