1. Department of Otolaryngology–Head and Neck SurgeryUniversity of Manitoba Winnipeg MB Canada
2. Division of Otolaryngology–Head and Neck Surgery, Department of SurgeryUniversity of Utah Salt Lake City UT
3. Department of MedicineUniversity of Utah Salt Lake City UT
4. Pedigree and Population Resource, Huntsman Cancer InstituteUniversity of Utah Salt Lake City UT