1. Division of Otolaryngology–Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City
2. Department of Otolaryngology–Head and Neck Surgery, University of California, Los Angeles
3. Division of Rhinology and Sinus Surgery/Oregon Sinus Center, Department of Otolaryngology–Head and Neck Surgery, Oregon Health & Science University, Portland
4. Division of Otolaryngology–Head and Neck Surgery, Yale School of Medicine, New Haven, Connecticut
5. Department of Otolaryngology–Head and Neck Surgery, Indiana University School of Medicine, Indianapolis
6. Department of Otolaryngology–Head & Neck Surgery, Medical University of South Carolina, Charleston