@article{Gregson2002, author = {Gregson, S. and Nyamukapa, C.A. and Garnett, G.P. and Mason, P.R. and Zhuwau, T. and Caraƫl, M. and Chandiwana, S.K. and Anderson, R.M.}, title= {Sexual mixing patterns and sex-differentials in teenage exposure to HIV infection in rural Zimbabwe}, year = {2002}, doi = {10.1016/S0140-6736(02)08780-9}, journal = {The Lancet}, volume = {359}, number = {9321}, pages = {1896--1903}, }