1. Division of Epidemiology College of Public Health The Ohio State University Columbus OH USA
2. School of Public Health The University of Kinshasa Kinshasa Democratic Republic of Congo
3. National AIDS Control Program (PNLS) Provincial Coordination Kinshasa Democratic Republic of Congo
4. Department of Epidemiology Gillings School of Global Public Health The University of North Carolina at Chapel Hill Chapel Hill NC USA
5. Department of Social Medicine The University of North Carolina at Chapel Hill Chapel Hill NC USA