1. Department of Otolaryngology–Head & Neck Surgery, Oregon Sinus CenterOregon Health & Science University Portland OR
2. Department of Otolaryngology–Head & Neck SurgeryMedical University of South Carolina Charleston SC
3. Sinus and Skull Base Surgery Program, Division of Otolaryngology–Head and Neck SurgeryDepartment of SurgeryUniversity of Utah Salt Lake City UT
4. Department of OtolaryngologyUniversity of Colorado Aurora CO
5. Department of SurgeryDivision of Otolaryngology–Head and Neck SurgeryUniversity of California San Diego San Diego CA
6. Department of Otolaryngology–Head and Neck Surgery, Division of Rhinology and Endoscopic Sinus SurgeryUniversity of Virginia Charlottesville VA