Clearinghouse: HIV and couples.
D005260:Female; D015658:HIV Infections / Q000517:prevention & control / Q000523:psychology* / Q000635:transmission; D006716:Homosexuality; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D012309:Risk-Taking; D012725:Sexual Behavior / Q000523:psychology*; D012747:Sexual Partners / Q000523:psychology*