1. Paediatrics Department, Hospital Farhat Hached, 4000 Ibn El Jazzar Street, Sousse, Tunisia
2. Laboratory of Anathomopathology, Hospital Farhat Hached, Sousse, Tunisia
3. Cabinet Gastroenterology, Street Léopold Senghor, Sousse, Tunisia
4. Paediatrics Department, Hospital Sahloul, Sousse, Tunisia