Diseases of the digestive system: - Diseases or disorders of the orofacial complex - Diseases of the oesophagus - Diseases of the stomach or the duodenum - Diseases of the small intestine - Diseases of the appendix - Diseases of the large intestine - Diseases of the anal canal - Diseases of the liver - Diseases of the gallbladder or biliary tract - Diseases of the pancreas - Diseases of the peritoneum - Diverticular disease of the intestine - Ischaemic vascular disorders of the intestine - Hernias - Inflammatory bowel diseases - Functional gastrointestinal disorders - Postprocedural disorders of the digestive system