1. University of Michigan Medical Center, Ann Arbor, Michigan, USA
2. University of Minnesota, Minneapolis, Minnesota, USA
3. George Washington University, Washington, DC, USA
4. Virginia Mason Medical Center, Seattle, Washington, USA
5. University of Florida, Gainesville, Florida, USA
6. University of Buffalo, Buffalo, New York, USA
7. University of Kentucky Medical Center, Lexington, Kentucky, USA
8. University of California San Diego, San Diego, California, USA
9. Duke University School of Nursing and Durham Veterans Affairs Medical Center, Durham, North Carolina, USA
10. House Ear Clinic, Los Angeles, California, USA
11. Boys Town National Research Hospital, Omaha, Nebraska, USA
12. C.S. Mott Children’s Hospital, Ann Arbor, Michigan, USA
13. Vestibular Disorders Association, Portland, Oregon, USA
14. Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA
15. Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
16. University of Pennsylvania, Philadelphia, Pennsylvania, USA
17. Washington University School of Medicine, St Louis, Missouri, USA
18. Private practice, West St Paul, Minnesota, USA
19. Consumers United for Evidence-Based Healthcare, Baltimore, Maryland, USA
20. American Academy of Otolaryngology—Head and Neck Surgery, Alexandria, Virginia, USA