1. Departments of Otolaryngology–Head and Neck Surgery and Neurological Surgery University of California, Irvine Orange California USA
2. Department of Otolaryngology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA
3. Department of Otorhinolaryngology–Head and Neck Surgery Perelman School of Medicine, University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Otolaryngology–Head and Neck Surgery University of California Los Angeles Los Angeles California USA
5. Department of Otolaryngology–Head and Neck Surgery Johns Hopkins University School of Medicine Baltimore Maryland USA
6. Sinonasal and Skull Base Tumor Program Surgical Oncology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health Bethesda Maryland USA
7. Department of Head and Neck Surgery The University of Texas MD Anderson Cancer Center Houston Texas USA
8. Department of Otolaryngology–Head and Neck Surgery University of Washington Seattle Washington USA
9. Department of Pathology Northwestern University Feinberg School of Medicine, Northwestern Memorial Hospital Chicago Illinois USA
10. Department of Otolaryngology–Head and Neck Surgery University of Utah Salt Lake City Utah USA
11. Division of Radiation Oncology University of Insubria, ASST Sette Laghi Hospital Varese Italy
12. Department of Radiation Oncology University of Pennsylvania, Perelman School of Medicine Philadelphia Pennsylvania USA
13. Department of Otorhinolaryngology–Head and Neck Surgery Rush University Medical Center Chicago Illinois USA
14. Department of Pathology City of Hope Comprehensive Cancer Center Duarte California USA
15. Otorhinolaryngology Department, Surgery and Medical‐Surgical Specialties Department, Faculty of Medicine and Health Sciences Universitat de Barcelona Barcelona Spain
16. Department of Otorhinolaryngology University Medical Center Hamburg‐Eppendorf Hamburg Germany
17. Department of Medical Oncology Centre Léon Bérard, UNICANCER, Université Claude Bernard Lyon I Lyon France
18. Department of Otolaryngology–Head and Neck Surgery Harvard Medical School Boston Massachusetts USA
19. Department of Otolaryngology Pontificia Universidad Católica de Chile Santiago Chile
20. Department of Otolaryngology–Head and Neck Surgery The Ohio State University Columbus Ohio USA
21. Department of Otolaryngology–Head and Neck Surgery University of Miami Miller School of Medicine Miami Florida USA
22. Division of Otorhinolaryngology, Department of Biotechnology and Life Sciences University of Insubria, ASST Sette Laghi Hospital Varese Italy
23. Department of Otolaryngology–Head and Neck Surgery Vanderbilt University Medical Center Nashville Tennessee USA
24. Department of Head, Neck and Skull Base Surgery Hygeia Hospital Athens Greece
25. Department of Pathology Stanford University Stanford California USA
26. Department of Otolaryngology–Head and Neck Surgery University of Kansas Medical Center Kansas City Kansas USA
27. Department of Otolaryngology–Head and Neck Surgery Mayo Clinic Rochester Minnesota USA
28. Department of Otorhinolaryngology‐Head & Neck Surgery, McGovern Medical School The University of Texas Health Science Center at Houston Houston Texas USA
29. Department of Surgery, Head and Neck Service Memorial Sloan Kettering Cancer Center New York New York USA
30. Department of Radiation Oncology University of Florida College of Medicine Jacksonville Florida USA
31. Department of Otolaryngology–Head and Neck Surgery Pisa University Hospital Pisa Italy
32. São Paulo ENT Center (COF) Edmundo Vasconcelos Complex São Paulo Brazil
33. Department of Otolaryngology–Head and Neck Surgery University Health Network, University of Toronto Toronto Ontario Canada
34. Section of Pathology, Department of Medicine University of Padua Padua Italy
35. Department of Otolaryngology–Head and Neck Surgery Emory University School of Medicine Atlanta Georgia USA
36. Department of Otolaryngology–Head and Neck Surgery University of North Carolina at Chapel Hill Chapel Hill North Carolina USA
37. Department of Otolaryngology–Head and Neck Surgery University of California San Francisco California USA
38. Department of Otolaryngology–Head and Neck Surgery Rutgers New Jersey Medical School Newark New Jersey USA
39. Department of Neurological Surgery and Otolaryngology–Head and Neck Surgery Thomas Jefferson University Philadelphia Pennsylvania USA
40. Department of Otorhinolaryngology–Head and Neck Surgery, Montefiore Medical Center The University Hospital for Albert Einstein College of Medicine Bronx New York USA
41. Department of Otolaryngology–Head and Neck Surgery Washington University in St. Louis St. Louis Missouri USA
42. Section of Otorhinolaryngology–Head and Neck Surgery, Department of Neurosciences University of Padua Padua Italy
43. Department of Radiology Stanford University Stanford California USA
44. Department of Otolaryngology–Head and Neck Surgery Oakland University William Beaumont School of Medicine Royal Oak Michigan USA
45. Department of Otorhinolaryngology Amsterdam UMC Amsterdam The Netherlands
46. Department of Otolaryngology–Head and Neck Surgery Baylor College of Medicine Houston Texas USA
47. Ear Institute University College London London UK
48. Department of Neurosurgery Johns Hopkins University School of Medicine Baltimore Maryland USA
49. Department of Neurological Surgery University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA
50. Department of Otolaryngology–Head and Neck Surgery Oregon Health and Science University Portland Oregon USA
51. Department of Otorhinolaryngology–Head and Neck Surgery University of Nicosia Medical School Nicosia Cyprus
52. Department of Otolaryngology–Head and Neck Surgery University of Colorado Aurora Colorado USA
53. Department of Otolaryngology–Head and Neck Surgery Icahn School of Medicine at Mount Sinai New York New York USA
54. Department of Otolaryngology–Head and Neck Surgery Massachusetts Eye and Ear Infirmary Boston Massachusetts USA
55. Department of Otolaryngology–Head and Neck Surgery University of Alabama at Birmingham Birmingham Alabama USA
56. Department of Otolaryngology–Head and Neck Surgery Albany Medical Center Albany New York USA
57. Department of Laboratory Medicine and Pathology Mayo Clinic Rochester Minnesota USA
58. Department of Otolaryngology–Head and Neck Surgery The University of Texas Southwestern Medical Center Dallas Texas USA
59. Rhinology and Skull Base Research Group, Applied Medical Research Centre University of South Wales Sydney New South Wales Australia
60. Department of Otolaryngology–Head and Neck Surgery LSU Health Sciences Center New Orleans Louisiana USA
61. Department of Radiation Oncology Mayo Clinic Florida Jacksonville Florida USA
62. Department of Otolaryngology–Head and Neck Surgery Guys and St Thomas’ Hospital London UK
63. Department of Otolaryngology–Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology–Head and Neck Surgery Ministry of Education Beijing China
64. Department of Otolaryngology–Head and Neck Surgery Stanford University School of Medicine Stanford California USA
65. Department of Neurological Surgery University of Miami Miller School of Medicine Miami Florida USA
66. Department of Otolaryngology, Head and Neck Surgery Swedish Medical Center Seattle Washington USA
67. Department of Pathology Taipei Veterans General Hospital Taipei Taiwan
68. Head and Neck Institute, Cleveland Clinic Lerner College of Medicine Cleveland Clinic Cleveland Ohio USA
69. Department of Otorhinolaryngology–Head and Neck Surgery Taipei Veterans General Hospital Taipei Taiwan
70. Department of Radiation Oncology Royal Adelaide Hospital Adelaide South Australia Australia
71. UCL Division of Surgery and Interventional Science and UCL Cancer Institute University College London London UK
72. Department of Radiation Oncology Memorial Sloan Kettering Cancer Center New York New York USA
73. Department of Head and Neck Surgery University of California, Los Angeles David Geffen School of Medicine Los Angeles California USA
74. Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine The University of Hong Kong Hong Kong SAR China
75. Department of Radiation Oncology Changhua Christian Hospital Changhua Taiwan
76. Department of Otolaryngology–Head and Neck Surgery University of Florida Gainesville Florida USA
77. Department of Pathology and Laboratory Medicine Emory University School of Medicine Atlanta Georgia USA
78. Division of Medical Oncology, Department of Oncology Mayo Clinic Rochester Minnesota USA
79. Department of Radiation Oncology University Medical Center Hamburg‐Eppendorf Hamburg Germany
80. Department of Otolaryngology–Head and Neck Surgery University of Michigan Ann Arbor Michigan USA
81. Department of Otorhinolaryngology, Head and Neck Surgery Ankara University Medical School Ankara Turkey
82. Department of Otorhinolaryngology Head and Neck Surgery Salzburg Paracelsus Medical University Salzburg Austria
83. Department of Medicine Memorial Sloan Kettering Cancer Center New York New York USA
84. Department of Otolaryngology–Head and Neck Surgery Thomas Jefferson University Philadelphia Pennsylvania USA
85. Department of Otorhinolaryngology The Jikei University School of Medicine Tokyo Japan
86. Department of Radiation Oncology The University of Texas MD Anderson Cancer Center Houston Texas USA
87. Department of Otolaryngology–Head and Neck Surgery Queen Elizabeth Hospital Adelaide South Australia Australia
88. Department of Otolaryngology–Head and Neck Surgery Yale University New Haven Connecticut USA
89. Department of Neurosurgery Oregon Health and Science University Portland Oregon USA
90. Department of Hematology and Oncology University Medical Center Hamburg‐Eppendorf Hamburg Germany
91. Department of Otolaryngology–Head and Neck Surgery Medical University of South Carolina Charleston South Carolina USA
92. Department of Otolaryngology–Head and Neck Surgery University of Cincinnati College of Medicine Cincinnati Ohio USA
93. Department of Neurosurgery and Otolaryngology–Head and Neck Surgery Icahn School of Medicine at Mount Sinai New York New York USA
94. Department of Otolaryngology–Head and Neck Surgery University of Manitoba Winnipeg Manitoba Canada
95. Department of Otolaryngology–Head and Neck Surgery Indiana University Indianapolis Indiana USA
96. Head and Neck Pathology Consultations Woodland Hills California USA
97. Department of Otolaryngology–Head and Neck Surgery, Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
98. Department of Pathology, Michigan Center for Translational Pathology, Rogel Cancer Center University of Michigan Ann Arbor Michigan USA
99. Department of Otorhinolaryngology Ghent University Hospital Ghent Belgium
100. Department of Otolaryngology–Head and Neck Surgery Northwestern University Feinberg School of Medicine Chicago Illinois USA
101. Department of Otolaryngology–Head and Neck Surgery University of Toronto Toronto Ontario Canada
102. Department of Otorhinolaryngology–Head and Neck Surgery Seoul National University Hospital, Seoul National University College of Medicine Seoul South Korea
103. Division of Otorhinolaryngology, Department of Surgery, School of Clinical Medicine, LKS Faculty of Medicine The University of Hong Kong Hong Kong SAR China