1. NYU Voice Center, Department of Otolaryngology-Head and Neck Surgery; New York University School of Medicine; New York New York
2. Department of Otolaryngology-Head and Neck Surgery; University of Washington School of Medicine; Seattle Washington
3. Department of Population Heath, Division of Biostatistics; New York University School of Medicine; New York New York
4. Department of Otolaryngology-Head and Neck Surgery; Brooke Army Medical Center; Fort Sam Houston Texas
5. University of Pittsburgh Voice Center, Department of Otolaryngology; University of Pittsburgh School of Medicine; Pittsburgh Pennsylvania U.S.A.