1. Department of Paediatric Surgery, Ibn Sina Specialized Surgical Hospital, Al-Sabah Health Region, Safat, Kuwait, Kuwait, Kuwait
2. Department of Paediatric Surgery, Ibn Sina Specialized Surgical Hospital, Ibn Sina Hospital Ministry of Health, Kuwait, Kuwait, Kuwait
3. Department of Pediatric Surgery, Kasr Elaini School of Medicine Cairo University, Kasr Elainy Faculty of Medicine, Cairo, Cairo, Egypt