[1] South African Medical Research Council,Burden of Disease Research Unit
[2] University of KwaZulu-Natal,School of Nursing and Public Health Medicine
[3] Human Sciences Research Council,Public Health, Societies and Belonging
[4] University of Cape Town,School of Public Health and Family Medicine
[5] University of KwaZulu-Natal,Cancer & Infectious Diseases Epidemiology Research Unit
[6] South African Medical Research Council,Division of Global HIV&TB
[7] Centers for Disease Control and Prevention,Division of Health Systems and Public Health
[8] Stellenbosch University,undefined