1. 2. Couto CG. Gastrointestinal neoplasia. Proceedings of the 8th Kal Kan Symposium, 1984; 17-24.
2. Canine gastrointestinal neoplasms;Patnaik;Vet Pathol,1977
3. Chronic bowel obstruction caused by primary intestinal neoplasia: A report of five cases;Feeney;J Am Anim Hosp Assoc,1982