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Intravenous Substance Abuse
Risk-Taking
Unsafe Sex
Sexual Behavior
Condoms
Needle Sharing
Health Knowledge, Attitudes, Practice
Self Disclosure
Safe Sex
HIV Serosorting
HIV Infections
Hepatitis C
Sexually Transmitted Diseases
United States
New York City
Risk Factors
Socioeconomic Factors
Urban Population
Condoms, Female
HIV Seropositivity
Co-Publications
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14
13
12
9
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7
6
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