Kharsany AB, Cawood C, Khanyile D, Grobler A, Mckinnon LR, Samsunder N, Frohlich JA, Abdool Karim Q, Puren A, Welte A, George G, Govender K, Toledo C, Chipeta Z, Zembe L, Glenshaw MT, Madurai L, Deyde VM, Bere A
BMC Public Health
(2015)
https://doi.org/10.1186/s12889-015-2179-2