1. Plastic Surgery Unit, University Hospital Trust of Sassari, Viale S. Pietro 43, 07100 Sassari, Italy
2. Department of Medicine, Surgery and Pharmacy, University of Sassari, Viale S. Pietro 43, 07100 Sassari, Italy
3. Otolaryngology Division, University Hospital Trust of Sassari, Viale S. Pietro 43, 07100 Sassari, Italy
4. Plastic, Reconstructive and Aesthetic Surgery Training Program, University of Sassari, Viale S. Pietro 43, 07100 Sassari, Italy