Prevalence of same-sex sexual behavior and associated characteristics among low-income urban males in Peru.

Bằng Jesse L Clark, Carlos F Caceres, Andres G Lescano, Kelika A Konda, Segundo R Leon, Franca R Jones, Susan M Kegeles, Jeffrey D Klausner, Thomas J Coates, NIMH STD/HIV Collaborative Prevention Trial
Được phát hành 2007-08-01