Estimates of the size of key populations at risk for HIV infection: men who have sex with men, female sex workers and injecting drug users in Nairobi, Kenya

Okal J, Geibel S, Muraguri N, Musyoki H, Tun W, Broz D, Kuria D, Kim A, Oluoch T, Raymond HF. Estimates of the size of key populations at risk for HIV infection: men who have sex with men, female sex workers and injecting drug users in Nairobi, Kenya. Sex Transm Infect. 2013; 89(5): 366–71.