1. Pediatric Department, La Rabta Hospital, Faculty of Medecine of Tunis, University of Tunis El Manar, Jabberi, Jebal Lakhdhar, Tunis, Tunisia
2. Pediatric Cardiology Department, La Rabta Hospital, Faculty of Medecine of Tunis, University of Tunis El Manar, Jabberi, Jebal Lakhdhar, Tunis, Tunisia