title: Clostridium difficile colitis unassociated with antibiotic therapy.
mesh_terms: D000328:Adult; D000368:Aged; D003015:Clostridium Infections; D003092:Colitis / Q000209:etiology*; D004761:Enterocolitis, Pseudomembranous / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged