1. Department of Biobehavioral Health, Penn State University, 315 HHD East Building, University Park, Pennsylvania 16802, USA,
2. Human Sciences Research Council, Pretoria, South Africa
3. Department of Health Policy and Administration, College of Health and Human Development, Penn State University, University Park, PA, USA
4. University of South Africa (UNISA), Pretoria, (formerly with the University of Limpopo, Turfloop campus), South Africa
5. University of the Western Cape, Cape Town, South Africa
6. Prevention Research Center, College of Health and Human Development, Penn State University, University Park, PA, USA
7. HIV, STIs and TB Research Programme, Human Sciences Research Council, Cape Town, South Africa