1. Department of Otolaryngology, Bill Wilkerson Center for Otolaryngology and Communication Disorders, Vanderbilt University Medical Center, Nashville, Tennessee, USA
2. Vanderbilt Voice Center, Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
3. Department of Otolaryngology, Bill Wilkerson Center for Otolaryngology and Communication Disorders, Center for Surgical Quality and Outcomes Research, Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, Tennessee, USA