Feasibility of conducting HIV prevention trials among key populations in Nairobi, Kenya. - Mutisya, Elizabeth Mueni; Muturi-Kioi, Vincent; Abaasa, Andrew; Nyasani, Delvin; Kabuti, Rhoda W.; Lunani, Laura; Kotikot, Timothy; Mundia, Moses; Mutua, Gaudensia; Ombati, Geoffrey; Nduta, Hannah; Price, Matt A.; et al. (BMC Public Health, 2022)