title: Key populations in sub-Saharan Africa: population size estimates and high risk behaviors.
authors.affiliation: Division of Global HIV/AIDS, Center for Global Health, Centers for Disease Control and Prevention, 1600 Clifton Road, MS-E30, Atlanta, GA, 30333, USA, afa3@cdc.gov.
authors.forename: Abu S
authors.initials: AS
authors.lastname: Abdul-Quader
authors.forename: Eleanor
authors.initials: E
authors.lastname: Gouws-Williams
authors.forename: Sheila
authors.initials: S
authors.lastname: Tlou
authors.forename: Linda
authors.initials: L
authors.lastname: Wright-De Agüero
authors.forename: Richard
authors.initials: R
authors.lastname: Needle
mesh_terms: D017954:Africa South of the Sahara / Q000453:epidemiology; D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission*; D006801:Humans; D011156:Population Density; D012309:Risk-Taking; D035862:Vulnerable Populations