Desmond Tutu Health Foundation, Faculty of Health Sciences, University of Cape Town, Cape Town
Connie Celum
Department of Global Health, University of Washington, Seattle, United States of America; and, Department of Medicine, University of Washington, Seattle, United States of America; and, Department of Epidemiology, University of Washington, Seattle, United States of America
Linda-Gail Bekker
Desmond Tutu Health Foundation, Faculty of Health Sciences, University of Cape Town, Cape Town