1. Sydney Head and Neck Cancer Institute, Royal Prince Alfred Hospital; Sydney New South Wales Australia
2. Australian School of Advanced Medicine; Macquarie University; Sydney New South Wales Australia
3. University of New South Wales; Sydney New South Wales Australia
4. The Laboratory for Applied Cancer Research, Rambam Medical Center; Rappaport School of Medicine, The Technion, Israel Institute of Technology; Haifa Israel
5. Department of Otolaryngology, Rambam Medical Center; Rappaport School of Medicine, The Technion, Israel Institute of Technology; Haifa Israel
6. Chang Gung Memorial Hospital; Taoyuan Taiwan
7. Tata Memorial Hospital; Mumbai India
8. Hospital A.C. Camargo; São Paulo Brazil
9. Department of Oral and Cranio-Maxillo and Facial Plastic Surgery; University of Cologne; Cologne Germany
10. Department of Head and Neck Surgery; University of São Paulo Medical School; São Paulo Brazil
11. Department of Otolaryngology Head and Neck Surgery; Rabin Medical Center; Petach Tikva Israel
12. Department of Otorhinolaryngology; University of Brescia; Brescia Italy.
13. Department of Otolaryngology; Head and Neck Surgery, Tel Aviv Medical Center; Tel Aviv Israel
14. Southern Illinois University School of Medicine; Springfield Illinois
15. Head and Neck Surgery Service; Memorial Sloan-Kettering Cancer Center; New York