X Ray Constipation Cat Megacolon CatArkivfotografi1650411127 | Shutterstock
Internal obturator muscle transposition for treatment of perineal hernia in dogs: 34 cases (1998–2012) in: Journal of the American Veterinary Medical Association Volume 246 Issue 3 ()
Perineal Hernias | American College of Veterinary Surgeons - ACVS