Karim Salim S Abdool, Kashuba Angela D M, Werner Lise, Karim Quarraisha Abdool
Centre for the AIDS Programme of Research in South Africa, University of KwaZulu-Natal, Durban, South Africa.
Lancet. 2011 Jul 16;378(9787):279-81. doi: 10.1016/S0140-6736(11)60878-7.