1. Department of Otolaryngology–Head and Neck Surgery, University of California, Irvine, Orange, California, United States
2. Department of Otolaryngology–Head and Neck Surgery, Rush University Medical Center, Chicago, Illinois, United States
3. Department of Head and Neck Surgery, University of California, Los Angeles, Los Angeles, California, United States
4. Department of Radiation Oncology, University of California, Irvine, Orange, California, United States
5. Department of Neurological Surgery, University of California, Irvine, Orange, California, United States