1 Rwanda Biomedical Center, Institute of HIV Disease Prevention and Control, Kigali, Rwanda. Electronic address: [email protected].
2 Ministry of Health, Rwanda; Department of Global Health and Social Medicine, Harvard Medical School, Boston, USA; Geisel School of Medicine, Dartmouth College, Hanover, NH, USA.
3 School of Population and Public Health, University of British Columbia, Vancouver, Canada.
4 School of Public Health, University of Rwanda, Kigali, Rwanda; Stanford Prevention Research Center, Stanford University, Stanford, CA, USA.