1. Department of Otorhinolaryngology—Head and Neck Surgery, Affiliated with Rappaport Faculty of Medicine, The Technion Hadera Israel
2. Institute of Oncology, Davidoff Cancer Center Rabin Medical Center—Beilinson Hospital Petach Tikva Israel
3. Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
4. Department of Otorhinolaryngology—Head and Neck Surgery Rabin Medical Center—Beilinson Hospital Petach Tikva Israel
5. Department of Otorhinolaryngology—Head and Neck Surgery Meir Medical Center Kfar Saba Israel