[Origin of syphilis].
D000349:Africa; D000569:Americas; D001208:Asia; D005060:Europe; D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D013587:Syphilis / Q000209:etiology / Q000266:history*
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