Nutrition and diseases of the gastrointestinal tract.
D000328:Adult; D000740:Anemia; D000818:Animals; D003093:Colitis, Ulcerative; D004068:Digestive System Physiological Phenomena; D013505:Digestive System Surgical Procedures; D004377:Dumping Syndrome; D005512:Food Hypersensitivity; D005759:Gastroenteritis; D005767:Gastrointestinal Diseases / Q000150:complications / Q000151:congenital; D005770:Gastrointestinal Neoplasms; D006801:Humans; D007049:Iatrogenic Disease; D007223:Infant; D007411:Intestinal Diseases, Parasitic; D008286:Malabsorption Syndromes; D008661:Metabolism, Inborn Errors; D009748:Nutrition Disorders / Q000150:complications / Q000209:etiology; D009747:Nutritional Physiological Phenomena; D010179:Pancreas / Q000601:surgery