AIDS 2015 Jan;29(1):101-9
aDivision of Epidemiology, College of Public Health, The Ohio State University, Columbus, Ohio bDepartment of Epidemiology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA cDepartment of Pediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa dSchool of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA eSchool of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa fInstitute of Social and Preventive Medicine, University of Bern, Switzerland gTumbi Regional Referral Hospital, Kibaha hMorogoro Regional Hospital, Morogoro, Tanzania iUniversity of New South Wales, The Kirby Institute for Infection and Immunity in Society, Darlinghurst, New South Wales, Australia jChiangrai Prachanukroh Hospital, Chiangrai, Thailand kInstitut de Santé Publique Epidemiologie et Développement, Université Bordeaux lInserm, Centre Inserm U897 'Epidémiologie et Biostatistique', Bordeaux, France mCentre National Hospitalier, Universitaire Hubert K. Maga, Cotonou, Bénin nRTI International, Biostatistics and Epidemiology, Research Triangle Park, North Carolina, USA.