A legacy of syphilis.
D002648:Child; D004200:Diseases in Twins; D005260:Female; D005315:Fetal Diseases; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious; D013590:Syphilis, Congenital / Q000235:genetics*; D014310:Triplets