Strengthening HIV surveillance in the antiretroviral therapy era: rationale and design of a longitudinal study to monitor HIV prevalence and incidence in the uMgungundlovu District, KwaZulu-Natal, South Africa
George G, Welte A, Govender K, Puren A, Toledo C, Kharsany AB, Chipeta Z, Cawood C, Zembe L, Khanyile D, Glenshaw MT, Grobler A, Madurai L, Mckinnon LR, Deyde VM, Samsunder N, Bere A, Frohlich JA, Abdool Karim Q
