Biologic versus behavioral endpoints--the duet continues.
Schachter
J
J
D017280:Condoms / Q000706:statistics & numerical data*; D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control; D006801:Humans; D015994:Incidence; D015203:Reproducibility of Results; D012725:Sexual Behavior / Q000706:statistics & numerical data; D012749:Sexually Transmitted Diseases / Q000453:epidemiology / Q000517:prevention & control*