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Subjects
- Acquired Immunodeficiency Syndrome -- prevention & control57
- Condoms50
- Safe Sex42
- Health Promotion14
- Homosexuality, Male14
- Sexual Behavior13
- Germany7
- Drug Therapy6
- Acquired Immunodeficiency Syndrome5
- Acquired Immunodeficiency Syndrome -- psychology5
- Austria5
- Sexually Transmitted Diseases -- prevention & control5
- Tissue Donors5
- Accidents, Occupational -- prevention & control4
- Health Behavior4
- Sexual Partners4
- Health Education3
- Health Knowledge, Attitudes, Practice3
- Lubricants3
- Nurses3