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Subjects
- Sexual Behavior198
- Substance-Related Disorders -- prevention & control198
- China196
- Health Knowledge, Attitudes, Practice196
- Fredrickson, Donald S.193
- Homosexuality, Male192
- World Health Organization.183
- Health Behavior175
- United States174
- Public Health169
- Facility Design and Construction167
- Sexually Transmitted Diseases -- prevention & control166
- Hotlines149
- Obstetrics142
- Midwifery133
- Adolescent128
- Sexual Partners123
- Acquired Immunodeficiency Syndrome -- psychology117
- Clothing117
- Awards and Prizes115