title: Multiple levels of influence in predicting sexual activity and condom use among adolescents in Soweto, Johannesburg, South Africa.
authors.affiliation: Perinatal HIV Research Unit, University of the Witwatersrand, Chris Hani Baragwanath Hospital, Johannesburg, South Africa.
authors.forename: Janan
authors.initials: J
authors.lastname: Dietrich
authors.affiliation: Department of Psychology and Neuroscience, Duke University, Durham, North Carolina, United States of America.
authors.forename: Kathleen
authors.initials: K
authors.lastname: Sikkema
authors.affiliation: Perinatal HIV Research Unit, University of the Witwatersrand, Chris Hani Baragwanath Hospital, Johannesburg, South Africa.
authors.forename: Kennedy N
authors.initials: KN
authors.lastname: Otwombe
authors.affiliation: Department of Psychology and Neuroscience, Duke University, Durham, North Carolina, United States of America.
authors.forename: Amy
authors.initials: A
authors.lastname: Sanchez
authors.affiliation: Perinatal HIV Research Unit, University of the Witwatersrand, Chris Hani Baragwanath Hospital, Johannesburg, South Africa.
authors.forename: Busisiwe
authors.initials: B
authors.lastname: Nkala
authors.affiliation: Perinatal HIV Research Unit, University of the Witwatersrand, Chris Hani Baragwanath Hospital, Johannesburg, South Africa.
authors.forename: Guy
authors.initials: G
authors.lastname: de Bruyn
authors.affiliation: Perinatal HIV Research Unit, University of the Witwatersrand, Chris Hani Baragwanath Hospital, Johannesburg, South Africa.
authors.forename: Martin
authors.initials: M
authors.lastname: Van Der Watt
authors.affiliation: Perinatal HIV Research Unit, University of the Witwatersrand, Chris Hani Baragwanath Hospital, Johannesburg, South Africa.
authors.forename: Glenda E
authors.initials: GE
authors.lastname: Gray