1. Department of Head and Neck Surgery University of California Los Angeles California USA
2. Department of Otolaryngology—Head and Neck Surgery Oregon Health Sciences University Portland Oregon USA
3. Department of Otolaryngology—Head and Neck Surgery Division of Rhinology and Sinus Surgery University of Virginia Charlottesville Virginia USA
4. CTSI, David Geffen School of Medicine University of California Los Angeles California USA
5. Department of Otolaryngology—Head and Neck Surgery University of Utah Salt Lake City Utah USA
6. Department of Psychology Portland State University Portland Oregon USA
7. Department of Otolaryngology—Head and Neck Surgery Vanderbilt Health Nashville Tennessee USA
8. Department of Pulmonary Medicine University of California Los Angeles California USA
9. Department of Otolaryngology—Head and Neck Surgery University of Colorado Aurora Colorado USA
10. Department of Otolaryngology—Head and Neck Surgery Stanford University Stanford California USA
11. Department of Otolaryngology—Head and Neck Surgery University of North Carolina Chapel Hill North Carolina USA
12. Department of Medicine National Jewish Health Denver Colorado USA
13. Department of Otolaryngology—Head and Neck Surgery Medical University of South Carolina Charleston South Carolina USA
14. Department of Pediatrics National Jewish Health Denver Colorado USA