1. Department of Vascular Surgery, Al-Hussain University Hospital, Faculty of Medicine for Males, Al-Azhar University, Darrasa, Cairo, Egypt
2. Division of Vascular Surgery, Department of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
3. Division of Pediatric Surgery, Department of Surgery, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
4. Division of Pediatric Surgery, Department of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
5. Faculty of Medicine, Helwan University, Cairo, Egypt
6. Department of General Surgery, Al-Hussain University Hospital, Faculty of Medicine for Males, Al-Azhar University, Darrasa, Cairo, Egypt
7. College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia