@article{Powers2008,
author = {Powers, K.A. and Poole, C. and Pettifor, A.E. and Cohen, M.S.},
title= {Rethinking the heterosexual infectivity of HIV-1: a systematic review and meta-analysis},
year = {2008},
doi = {10.1016/S1473-3099(08)70156-7},
journal = {Lancet Infectious Diseases},
volume = {8},
number = {9},
pages = {553−563},
}