title: Transmission of the acquired immunodeficiency syndrome through heterosexual activity.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000635:transmission*; D017977:Deltaretrovirus / Q000302:isolation & purification; D005260:Female; D006801:Humans; D008297:Male; D012306:Risk; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000635:transmission*