1. Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia,” ENT SectionUniversity of Catania Catania Italy
2. Department of ‘Organi di Senso’University “Sapienza” Rome Italy
3. Department of Head‐Neck Surgery, Otolaryngology, Head‐Neck, and Oral Surgery UnitMorgagni Pierantoni Hospital Forlì Italy
4. ENT Unit Villa Serena Forlì Forlì Italy
5. Department of Plastic surgeryAUSL della Romagna Ravenna Italy
6. Department ENT and AudiologyUniversity of Ferrara Ferrara Italy