1. Department of Otolaryngology-Head and Neck Surgery, Voice and Swallowing Institute; Columbia University Medical Center/New York Presbyterian; New York New York U.S.A.
2. Department of Otolaryngology; Vanderbilt University Medical Center; Nashville Tennessee U.S.A.
3. Department of Hearing and Speech Sciences; Vanderbilt University Medical Center; Nashville Tennessee U.S.A.
4. Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
5. Corning Research and Development Corporation; Painted Post New York U.S.A.