1. Division of Global HIV and TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
2. ICAP at Columbia University, Dar es Salaam, Tanzania
3. Centers for Disease Control and Prevention, Dar es Salaam, Tanzania
4. ICF International, Atlanta, GA, USA
5. Centers for Disease Control and Prevention, Harare, Zimbabwe
6. ICAP at Columbia University, New York, NY, USA
7. National AIDS Control Program, Ministry of Health, Community Development, Gender, Elderly and Children, Dar es Salaam, Tanzania