title: How efficient is "safer sex" in preventing HIV infection?
authors.affiliation: Max-von-Pettenkofer-Institut, Universität München.
authors.forename: G G
authors.initials: GG
authors.lastname: Frösner
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control* / Q000635:transmission; D003275:Contraceptive Devices, Male; D006679:HIV Seropositivity; D006716:Homosexuality; D006801:Humans; D012307:Risk Factors; D012725:Sexual Behavior