title: Unsafe sexual intercourse among heterosexual, bisexual and homosexual people.
authors.forename: C E
authors.initials: CE
authors.lastname: Waddell
mesh_terms: D001727:Bisexuality; D003275:Contraceptive Devices, Male; D005260:Female; D006716:Homosexuality; D006801:Humans; D008297:Male; D012725:Sexual Behavior