1. Department of Otolaryngology–Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
2. Department of Otolaryngology–Head and Neck Surgery, Palo Alto Medical Foundation, Burlingame, California, USA
3. Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA