1. Department of Otorhinolaryngology, Sapienza University, Rome, Italy;
2. Department of Otorhinolaryngology, Head & Neck Surgery, Lariboisière University Hospital, Assistance Publique Hôpitaux de Paris University Paris Sorbonne Cité, Paris, Francia;
3. Department of Otorhinolaryngology, Hopital Lariboisiere, Paris, France;
4. Department of Otorhinolaryngology, University of Rome La Sapienza 2nd Medical School, Rome, Italy