1. Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of California, San Diego; San Diego CA
2. Department of Otolaryngology-Head and Neck Surgery, University of California, Los Angeles; Los Angeles CA
3. Department of Otolaryngology-Head and Neck Surgery, Division of Rhinology, Oregon Health and Science University; Portland OR
4. Division of Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah; Salt Lake City UT