1. Department of Otolaryngology-Head and Neck Surgery; VU University Medical Center; Amsterdam The Netherlands
2. Department of Otolaryngology-Head and Neck Surgery; Radboud University Medical Center; Nijmegen The Netherlands
3. Department of Radiology and Nuclear Medicine; VU University Medical Center; Amsterdam The Netherlands
4. Department of Otorhinolaryngology; The University of Oklahoma Health Sciences Center; Oklahoma City Oklahoma
5. Department of Otorhinolaryngology-Head and Neck Surgery; Kantonsspital; St. Gallen Switzerland
6. Department of Radiology; University of Florida College of Medicine; Gainesville Florida
7. Department of Pathology; University of Arkansas for Medical Sciences; Little Rock Arkansas
8. Department of Otolaryngology; Hospital Universitario Central de Asturias; Oviedo Spain
9. Instituto Universitario de Oncología del Principado de Asturias; Oviedo Spain
10. Oral Pathology; School of Dentistry, University of Liverpool; Liverpool United Kingdom
11. Department of Otolaryngology-Head and Neck Surgery; University of Marburg; Marburg Germany
12. Department of Otolaryngology-Head and Neck Surgery, Sylvester Comprehensive Cancer Center; University of Miami; Miami Florida
13. University of Udine School of Medicine; Udine Italy
14. Department of Surgery; Banner MD Anderson Cancer Center; Gilbert Arizona
15. Department of Head and Neck Surgery, Head and Neck Oncology Program; St. Luc University Hospital and Cancer Center; Brussels Belgium
16. Division of Otolaryngology-Head and Neck Surgery; Southern Illinois University School of Medicine; Springfield Illinois
17. Departments of Surgery and Otolaryngology-Head and Neck Surgery; Albert Einstein College of Medicine, Montefiore Medical Center; Bronx New York