aCentre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
bSandra Rotman Centre, University Health Network
cDalla Lana School of Public Health and Joint Centre for Bioethics, University of Toronto, Toronto, Canada.
Correspondence to Jerome A. Singh, Private Bag X7, Congella, Durban 4013, South Africa. Tel: +27 31 260 4555; fax: +27 31 260 4566; e-mail: email@example.com
Received 8 May, 2013
Accepted 14 May, 2013