1. Umbilical enterocutaneous fistula;Baxter;Compend Equine Ed,2007
2. Enterocutaneous fistulae in horses: 18 cases (1964–1992);Bristol;Vet Surg,1994
3. Dorland's medical dictionary for health consumers,2007
4. Strangulating umbilical hernias in horses: 13 cases (1974–1985);Markel;J Am Vet Med Assoc,1987
5. Anaesthesia of the horse;Hall,1991