1. Faculty of Medicine Hebrew University of Jerusalem Jerusalem Israel
2. Department of Otolaryngology, Head and Neck surgery Kaplan Medical Center Rehovot Israel
3. A.R.M. Center of Otolaryngology Head and Neck Surgery Assuta Medical Center Tel Aviv Israel
4. Sackler School of Medicine Tel Aviv University Tel Aviv Israel
5. Department of Otolaryngology, Head and Neck surgery Rabin Medical Center Petach‐Tikva Israel