1. Department of Pediatrics, Sapienza University of Rome, Rome, Italy
2. Department of Maxillo-Facial Surgery, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
3. Organi di Senso Department, Sapienza University of Rome, Rome, Italy
4. Pediatric Surgery Unit, Sapienza University of Rome, Rome, Italy
5. Servizio Speciale di Radiologia Pediatrica, Policlinico Umberto I, Università degli Studi La Sapienza, Roma, Italy