1. Department of Otorhinolaryngology, Hospital Parc Taulí Universitat Autònoma de Barcelona Sabadell Spain
2. Head and Neck Service, Department of Surgery Memorial Sloan Kettering Cancer Center New York New York USA
3. Department of Otorhinolaryngology, Hospital de la Santa Creu i Sant Pau Universitat Autònoma de Barcelona Barcelona Spain
4. Centro de Investigación Biomédica en Red de Bioingeniería Biomateriales y Nanomedicina (CIBER‐BBN) Madrid Spain
5. UVIC‐Universitat Central de Catalunya Vic Spain