1. Department of Surgery, Division of Otolaryngology, University of Vermont Medical Center, Burlington
2. Department of Otolaryngology–Head and Neck Surgery, University of Ottawa, Canada
3. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
4. Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
5. Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Sunnybrook Health Sciences Centre and Michael Garron Hospital, Toronto, Ontario, Canada
6. Institute of Health Policy, Management and Evaluation, University of Toronto, Ontario, Canada
7. Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Ontario, Canada
8. Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
9. Department of Otolaryngology–Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
10. Larner College of Medicine, University of Vermont, Burlington
11. Division of Surgery, Department of Surgical Sciences, Faculty of Medicine and Health Sciences, Cape Town, South Africa
12. Breast and Endocrine Unit, Tygerberg Hospital, Cape Town, South Africa
13. Division of Surgery, Department of Surgical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
14. Department of Surgery, University of Toronto, Ontario, Canada
15. Department of Otorhinolaryngology, Head and Neck Surgery, Aarhus University Hospital, Aarhus, Denmark
16. Division of Thyroid and Parathyroid Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery, Harvard Medical School, Boston, Massachusetts
17. Department of Otolaryngology, University of Massachusetts, Worcester
18. Division of Otolaryngology–Head & Neck Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
19. Department of Otolaryngology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
20. Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
21. Faculty of Medicine, University of Ottawa, Ontario, Canada
22. The Permanente Medical Group, Santa Rosa, California
23. Department of Otolaryngology–Head and Neck Surgery, School of Medicine, Stanford University, Stanford, California
24. Department of Surgery, Southern Illinois University School of Medicine, Springfield, Illinois
25. The Permanente Medical Group, Fremont, California
26. Department of Surgery, Rush University Medical Center, Chicago, Illinois
27. Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston
28. Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston
29. Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston
30. Veterans Affairs Outcomes Group, White River Junction, Vermont
31. Section of Otolaryngology–Head & Neck Surgery, The Dartmouth Institute for Health Policy & Clinical Practice, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
32. Associate Editor, JAMA Otolaryngology−Head & Neck Surgery