1. Department of Anatomy and Embryology, Faculty of Veterinary Medicine; Mansoura University; Mansoura Egypt
2. Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine; Aswan University; Aswan Egypt
3. Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine; Mansoura University; Mansoura Egypt
4. Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine; Qassim University; Qassim Saudi Arabia