Involutional changes of Treponema pallidum during penicillin treatment in man.
D006801:Humans; D008297:Male; D010406:Penicillins / Q000627:therapeutic use*; D013587:Syphilis / Q000628:therapy*; D014210:Treponema pallidum / Q000187:drug effects*
D010406:Penicillins
PENICILLIN/therapeutic use; SYPHILIS/therapy; TREPONEMA PALLIDUM/effect of drugs on