1. Unified Health System, Ministry of Health, Brazil
2. Ear Nose and Throat Department, Kenyatta National Hospital, Nairobi, Kenya
3. Department of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, North Carolina
4. Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia
5. Ear Nose and Throat Department, Nyahururu County Hospital, Nyahururu, Kenya
6. Nossal Institute for Global Health, Department of Audiology and Speech Pathology, University of Melbourne, Melbourne, Victoria, Australia
7. Department of Otorhinolaryngology–Head & Neck Surgery, University of Pennsylvania, Philadelphia
8. Tufts University School of Medicine, Boston, Massachusetts
9. Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Boston
10. Division of Otolaryngology, University of Cape Town, Cape Town, South Africa
11. Department of Otolaryngology/Head and Neck Surgery, Samson Assuta Ashdod University Hospital, Ben Gurion University of the Negev, Israel
12. Universidad del Desarrollo, Facultad de Medicina, Clínica Alemana de Santiago, Hospital Dr Luis Calvo Mackenna, Chile
13. Brighton & Sussex Medical School, Brighton, United Kingdom
14. Department of Otolaryngology–Head and Neck Surgery, University of California, Irvine
15. Faculty of Surgery, University of Western Australia, Perth, Western Australia, Australia
16. Department of Otorhinolaryngology Head and Neck Surgery, University of Nairobi, Kenya
17. Medical student, Harvard Medical School, Boston, Massachusetts
18. Universidade do Vale do Taquari, Brazil
19. Department of Otolaryngology Head and Neck Surgery, Shin Kong Wu Ho-Su Memorial Hospital, Fu-Jen University, Taiwan
20. Department of Otolaryngology Head and Neck Surgery, Mbarara University of Science and Technology, Uganda
21. Department of Otolaryngology Head and Neck Surgery, Mulago National Referral Hospital, Uganda
22. Division of Pediatric Otolaryngology, Head-Neck Surgery, Department of Otolaryngology, Head-Neck Surgery, Stanford University, Stanford, California
23. Bel Campus University of Technology, Kinshasa, Democratic Republic of Congo
24. Kenyatta University Teaching Research and Referral Hospital, Nairobi, Kenya
25. The International Center for Recurrent Head and Neck Cancer, the Royal Marsden Hospital, London, United Kingdom
26. Department of Anesthesia & Perioperative Care, University of California, San Francisco
27. The Eisdell Moore Centre for Hearing and Balance Research, The University of Auckland, Auckland, New Zealand
28. STMU Shifa College of Medicine, Islamabad, Pakistan
29. St Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
30. University of Abuja and University of Abuja Teaching Hospital, Abuja, Nigeria
31. University of Conakry Médical Faculty, Conakry, Guinea
32. Pan-American Otolaryngology Association, Miami, Florida
33. Department of Surgery, Kamuzu University of Health Sciences, Blantyre, Malawi
34. Department of Otorhinlaryngology–Head and Neck Surgery, University of Limerick, Limerick, Ireland
35. Department of Otorhinolaryngology, University of Malta, Malta
36. Department of Otorhinolaryngology and Head and Neck Surgery, Slovak Medical University, Bratislava, Slovakia
37. Hôpital Provincial Général de Référence de Bukavu, Université Catholique de Bukavu, Bukavu, Democratic Republic of the Congo
38. Department of otolaryngology, Vivian Pellas Hospital, Managua, Nicaragua
39. Servicio de Otorrinolaringología, Bogota, Hospital Militar Central, Bogata, Colombia
40. Department of Otolaryngology–Head and Neck Surgery, University of California, San Francisco