1. Department of Otolaryngology-Head and Neck Surgery; Kaplan Medical Center; Rehovot Israel
2. Hadassah Medical School; Hebrew University; Jerusalem Israel
3. Schneider Children's Medical Center; Petah Tikva Israel
4. Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
5. Department of Otolaryngology-Head and Neck Surgery; Rabin Medical Center; Petah Tikva Israel
6. Department of Otolaryngology-Head and Neck Surgery; Bnai Zion Medical Center; Haifa Israel
7. Rappaport Faculty of Medicine; Technion-Israel Institute of Technology; Haifa Israel
8. Department of Otolaryngology, Head and Neck Surgery; Hadassah Medical Center; Jerusalem Israel.