title: Meningeal syphilis: an elusive diagnosis.
mesh_terms: D000328:Adult; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D008581:Meningitis / Q000175:diagnosis* / Q000188:drug therapy; D009494:Neurosyphilis / Q000175:diagnosis* / Q000188:drug therapy; D010401:Penicillin G Benzathine / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D010401:Penicillin G Benzathine