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
Jerry Okal, Scott Geibel, Nicolas Muraguri, Helgar Musyoki, Waimar Tun, Dita Broz, David Kuria, Andrea Kim, Tom Oluoch, H Fisher Raymond
Sexually Transmitted Infections Aug 2013, 89 (5) 366-371; DOI: 10.1136/sextrans-2013-051071