No abstract available
MeSH terms
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China / epidemiology
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Communicable Disease Control / history
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Communicable Disease Control / methods
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Female
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History, 20th Century
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Homosexuality, Male
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Humans
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Incidence
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Infant, Newborn
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Male
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Pregnancy
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Pregnancy Complications, Infectious / prevention & control
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Public Health Practice*
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Sex Work
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Syphilis / epidemiology*
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Syphilis / history
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Syphilis / prevention & control
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Syphilis, Congenital / epidemiology