1. Stanford University School of Medicine Stanford University Palo Alto California U.S.A.
2. Department of Otolaryngology – Head and Neck Surgery Stanford Health Care Palo Alto California U.S.A.
3. Department of Pathology Stanford Health Care Palo Alto California U.S.A.
4. Division of Laryngology, Department of Otolaryngology – Head and Neck Surgery Stanford Health Care Palo Alto California U.S.A.