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- Acquired Immunodeficiency Syndrome -- prevention & control967
- Condoms435
- Safe Sex413
- Nurses338
- Anniversaries and Special Events290
- Acquired Immunodeficiency Syndrome271
- Physicians217
- Health Promotion200
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- Family Planning Services173
- Health Education165
- National Library of Medicine (U.S.)160
- World Health Organization149
- Child140
- Homosexuality, Male140
- United States129
- African Americans127
- HIV Infections -- prevention & control127
- Substance-Related Disorders -- prevention & control127
- Fredrickson, Donald S.122