1. Department of Head and Neck SurgeryUniversity of California Los Angeles California Los Angeles
2. Department of Otolaryngology–Head and Neck SurgeryUniversity of California, Irvine Medical Center Orange, California U.S.A
3. David Geffen School of MedicineUniversity of California Los Angeles California Los Angeles
4. Head and Neck Cancer ProgramUniversity of California Los Angeles California Los Angeles
5. Jonsson Comprehensive Cancer CenterUniversity of California Los Angeles Los Angeles, California