1. Rehabilitation Centre A.I.R.R.I. , Bracciano (Rome) , Italy
2. Institute of Cognitive Sciences and Technologies, National Research Council , Rome , Italy
3. Audiology and Otosurgery Unit , Cochlear Implant Referral Centre, , Rome , Italy
4. “Bambino Gesù” Children’s Hospital and Research Institute , Cochlear Implant Referral Centre, , Rome , Italy