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Subjects
- Syphilis -- diagnosis[remove]12
- Syphilis -- drug therapy3
- Diagnosis, Differential2
- Homosexuality, Male2
- Syphilis Serodiagnosis -- methods2
- Acquired Immunodeficiency Syndrome -- diagnosis1
- Acquired Immunodeficiency Syndrome -- prevention & control1
- Condoms1
- HIV Infections -- diagnosis1
- Mercury -- therapeutic use1
- Penicillins -- therapeutic use1
- Safe Sex1
- Self-Help Groups1
- Sexually Transmitted Diseases -- diagnosis1
- Syphilis -- prevention & control1
- Tuberculosis -- diagnosis1