Abstinence and safer sex among adolescents.
Berman
S M
SM
Gunn
R A
RA
Aral
S O
SO
D000293:Adolescent; D002648:Child; D006801:Humans; D012309:Risk-Taking; D012746:Sexual Abstinence; D012749:Sexually Transmitted Diseases / Q000453:epidemiology / Q000517:prevention & control*