Morrison, Charles S; Richardson, Barbra A; Mmiro, Francis; Chipato, Tsungai; Celentano, David D; Luoto, Joanne; Mugerwa, Roy; Padian, Nancy; Rugpao, Sungwal; Brown, Joelle M; Cornelisse, Peter; Salata, Robert A; for the Hormonal Contraception and the Risk of HIV Acquisition (HC-HIV) Study Group
AIDS. 21(1):85-95, January 2, 2007.
doi: 10.1097/QAD.0b013e3280117c8b