Ed Hall is Emeritus Professor of Small Animal Internal Medicine and specialises in small animal gastroenterology. A Cambridge graduate, he trained in Philadelphia and Liverpool before moving to Bristol Veterinary School in 1995. He is a Diplomate of the European College of Veterinary Internal Medicine, and an RCVS Recognised Specialist in Small Animal Medicine (Gastroenterology). He is a Past President of the British Small Animal Veterinary Association and is Kennel Club Breed Health Coordinator for the Irish setter. He has published research papers in the field of small animal gastroenterology, co-edited three editions of the BSAVA Manual of Canine and Feline Gastroenterology and written numerous chapters in other veterinary textbooks. His main clinical interests are in inflammatory bowel disease and videoendoscopy.