TY - JOUR A1 - Adedini, S.A. A1 - Thaele, D. A1 - Sello, M. A1 - Mutevedzi, P. A1 - Hywinya, C. A1 - Ngwenya, N. A1 - Myburgh, N. A1 - Madhi, S.A. T1 - Approaches, achievements, challenges, and lessons learned in setting up an urban-based Health and Demographic Surveillance System in South Africa Y1 - 2021 DO - 10.1080/16549716.2021.1874138 VL - 14 IS - 1 ER -