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Subject
- Sexually transmitted diseases--Prevention4
- Couples--Health and hygiene3
- Couples--Sexual behavior3
- HIV infections--Risk factors2
- HIV infections—Prevention2
- Sexual health2
- Clinical trials1
- Condom use1
- Epidemiology1
- Female condoms1
- HIV-positive women1
- Intimate partner violence1
- Intravenous drug abusers1
- Non-monogamous relationships1
- Poor1
- Risk-taking (Psychology)1
- Women--Drug use1