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Subjects
- Acquired Immunodeficiency Syndrome -- prevention & control115
- Nurses111
- Germany93
- Condoms75
- Safe Sex73
- World War I54
- Military Personnel44
- Red Cross38
- Physicians36
- Ophthalmology30
- Famous Persons28
- Deutsches Rotes Kreuz.25
- Natural History23
- Health Promotion22
- National Socialism22
- World War II22
- Homosexuality, Male20
- Child19
- Sexual Behavior18
- Patients17