title: Empyema caused by Clostridium perfrigens.
mesh_terms: D003015:Clostridium Infections / Q000150:complications*; D003016:Clostridium perfringens / Q000302:isolation & purification*; D004653:Empyema / Q000209:etiology* / Q000382:microbiology; D006801:Humans; D008297:Male; D008875:Middle Aged