title: Clostridium perfringens empyema unresponsive to penicillin.
mesh_terms: D002440:Cefoxitin / Q000627:therapeutic use; D003015:Clostridium Infections / Q000188:drug therapy*; D003016:Clostridium perfringens; D004653:Empyema / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010400:Penicillin G / Q000627:therapeutic use; D010403:Penicillin Resistance
chemical_list: D002440:Cefoxitin; D010400:Penicillin G