The introduction of penicillin for the treatment of syphilis.
D005260:Female; D049673:History, 20th Century; D006801:Humans; D008297:Male; D010400:Penicillin G / Q000266:history / Q000627:therapeutic use; D010402:Penicillin G Procaine / Q000266:history / Q000627:therapeutic use; D010406:Penicillins / Q000266:history* / Q000627:therapeutic use; D011247:Pregnancy; D013587:Syphilis / Q000188:drug therapy / Q000266:history*
D010406:Penicillins; D010402:Penicillin G Procaine; D010400:Penicillin G