Diet and diseases of the gastrointestinal tract.
D002769:Cholelithiasis; D004032:Diet; D004241:Diverticulum, Colon / Q000628:therapy; D005767:Gastrointestinal Diseases; D006801:Humans; D007249:Inflammation / Q000628:therapy; D010438:Peptic Ulcer Hemorrhage / Q000628:therapy