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Subjects
- Nurses410
- Acquired Immunodeficiency Syndrome -- prevention & control344
- Condoms164
- Safe Sex152
- Family Planning Services120
- Red Cross85
- Schools, Medical76
- Child68
- Health Promotion64
- England57
- Kweiyang, China. Emergency Medical Service Training School.56
- Military Personnel56
- Sexual Behavior51
- Sexually Transmitted Diseases -- prevention & control50
- Health Education47
- World War I44
- Tuberculosis, Pulmonary -- prevention & control43
- United States42
- Substance-Related Disorders -- prevention & control41
- Homosexuality, Male39