Evaluating behavioral interventions: need for randomized controlled trials.
Gerber
A R
AR
Campbell
C H
CH
Dillon
B A
BA
Holtgrave
D R
DR
D015658:HIV Infections / Q000517:prevention & control*; D015438:Health Behavior; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012309:Risk-Taking