1. Department of Visceral Surgery, Children’s Hospital Canastel, Faculty of Medicine, University of Oran, Oran, Algeria
2. Gastroenterology and Endocrinology, Children’s Hospital Canastel, Faculty of Medicine, University of Oran, Oran, Algeria
3. Department of Pediatric Surgery, CHU of Sidi Bel Abbes, University of Sidi Bel Abbes, Sidi Bel Abbes, Algeria