1 Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele - Milan, Italy; Otorhinolaryngology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano - Milan, Italy.
2 Otorhinolaryngology Department, Hospital Germans Trias, I Pujol, Universitat Autòonoma de Barcelona, Badalona, Spain.
3 Department of Medical Science (DIMES), University of Genoa, Genoa, Italy; Department of Otorhinolaryngology, Hospital Clínic, Barcelona, Spain; Unit of Head and Neck Tumors, Hospital Clínic, Barcelona, Spain. Electronic address: claudio.sampieri@outlook.com.
4 Department of Otolaryngology - Head and Neck Surgery, AdventHealth Orlando, 410 Celebration Place, Celebration, FL 34747, United States.