[1] Univ Peruana Cayetano Heredia, Sch Publ Hlth, Kuskaya Interdisciplinary Training Program Innova, Av Honorio Delgado 431 San Martin de Porres, Lima, Peru
[2] Univ Washington, Sch Publ Hlth, Kuskaya Interdisciplinary Training Program Innova, Seattle, WA 98195 USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Div Infect Dis, Los Angeles, CA 90095 USA
[4] Univ Peruana Cayetano Heredia, Sch Publ Hlth & Adm, Unit Epidemiol STD & HIV, Lima, Peru