1. Department of Otolaryngology Head and Neck Surgery University of Washington Seattle Washington USA
2. Valora Consulting Seattle Washington USA
3. Department of Otolaryngology ‐ Head and Neck Surgery Harvard Medical School and Massachusetts Eye and Ear Boston Massachusetts USA
4. Department of Otolaryngology ‐ Head and Neck Surgery, Harvard Medical School and Center for Surgery and Public Health Brigham and Women's Hospital Boston Massachusetts USA