| Affiliation: | 1. Department of Otolaryngology–Head and Neck Surgery, University of California, Davis Medical Center, Sacramento, CA;2. Division of Rhinology and Sinus Surgery, Oregon Sinus Center, Department of Otolaryngology–Head and Neck Surgery, Oregon Health and Science University, Portland, OR;3. Division of Otolaryngology–Head and Neck Surgery, Department of Surgery, University of Calgary, Calgary, Alberta, Canada;4. Sinus and Skull Base Surgery Program, Division of Otolaryngology–Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT |
