1. Atresia ani in the dog: a retrospective study;Vianna ML,2005
2. Congenital intestinal atresia in calves;Kilic N,2004
3. Long-term results of surgery for atresia ani with or without anogenital malformations in puppies and a kitten: 12 cases (1983-2010);Ellison GW,2012
4. Rectovaginal fistula with anal atresia in 5 dogs;Rahal SC,2007
5. Large intestine;O’Brien TR,1981