[1] Salim S. Abdool Karim and Quarraisha Abdool Karim are at the Centre for the AIDS Programme of Research in South Africa,and at the Department of Epidemiology
[2] University of KwaZulu-Natal,undefined
[3] Congella 4013,undefined
[4] South Africa,undefined
[5] Columbia University,undefined
[6] New York 10032,undefined
[7] USA. caprisa@ukzn.ac.za,undefined