Syphilis and social upheaval in China.
Wu
Zunyou
Z
Zhou
Pingyu
P
D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D020407:Internet; D011159:Population Surveillance; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology; D013587:Syphilis / Q000453:epidemiology; D013590:Syphilis, Congenital / Q000175:diagnosis / Q000453:epidemiology*