1. Department of Otolaryngology–Head and Neck SurgeryColumbia University Irving Medical CenterNewYork–Presbyterian HospitalNew YorkNew YorkUSA
2. Department of Otolaryngology–Head and Neck SurgeryVanderbilt University Medical CenterNashvilleTennesseeUSA
3. Department of Otolaryngology–Head and Neck SurgeryStanford UniversityPalo AltoCaliforniaUSA