@article{Gray2001,
author = {Gray, R. H. and Wawer, M. J. and Brookmeyer, R. and Sewankambo, N. K. and Serwadda, D. and Wabwire-Mangen, F. and Lutalo, T. and Li, X. and vanCott, T. and Quinn, T. C.},
title= {Probability of HIV-1 Transmission Per Coital Act in Monogamous, Heterosexual, HIV-1-Discordant Couples in Rakai, Uganda},
year = {2001},
doi = {10.1016/S0140-6736(00)04331-2},
journal = {The Lancet},
volume = {357},
number = {9263},
pages = {1149--1153},
}