The limits of observational epidemiology: Hormonal contraception and women’s risk of HIV infection Landon Myer Centre for Infectious Diseases Epidemiology & Research, School of Public Health & Family Medicine, University of Cape Town, Cape Town PDF (518 KB) HTML EPUB XML FIGURE_1 Published 2012-07-31 Issue Vol 108 No 7/8 (2012): South African Journal of Science Section News and Views
