Incidence of syphilis among prostitutes and cabaret hostesses in Tsingtao.
D001699:Biometry; D006801:Humans; D015994:Incidence; D011477:Sex Work; D060386:Sex Workers; D013587:Syphilis / Q000453:epidemiology* / Q000706:statistics & numerical data*
PROSTITUTION; SYPHILIS/epidemiology and statistics