How useful are the serologic tests for syphilis?
D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D011247:Pregnancy; D013587:Syphilis / Q000175:diagnosis / Q000276:immunology; D013588:Syphilis Serodiagnosis; D013590:Syphilis, Congenital / Q000175:diagnosis / Q000276:immunology