Gastrointestinal disease and clinical nutrition.
D003677:Deficiency Diseases / Q000209:etiology*; D004032:Diet; D004063:Digestion; D004064:Digestive System / Q000378:metabolism; D005767:Gastrointestinal Diseases / Q000150:complications*; D006801:Humans; D007408:Intestinal Absorption; D008286:Malabsorption Syndromes; D009748:Nutrition Disorders / Q000209:etiology*; D009747:Nutritional Physiological Phenomena