title: Letter: The bran-hypothesis.
mesh_terms: D002400:Cathartics; D003906:Developing Countries; D004032:Diet; D004040:Dietary Carbohydrates; D004240:Diverticulum / Q000209:etiology*; D002523:Edible Grain
chemical_list: D002400:Cathartics; D004040:Dietary Carbohydrates