1. Department of Otorhinolaryngology‐Head and Neck Surgery Groupe Hospitalier Nord Essonne Longjumeau France
2. Otorhinolaryngology Department University Hospital of Verona Verona Italy
3. Department of General Practice Yorkleigh Surgery Gloucester UK
4. Department of Otorhinolaryngology‐Head and Neck Surgery Hôpital Lariboisière, APHP.Nord University of Paris Cité Paris France