1. Lions Voice Clinic, Department of Otolaryngology–Head and Neck Surgery, University of Minnesota, Minneapolis, Minnesota, USA
2. Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
3. Department of Communication Sciences and Disorders, The University of Utah, Salt Lake City, Utah, USA
4. Clinical Center for Voice Care, Department of Otolaryngology–Head and Neck Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
5. Duke Voice Care Center, Division of Otolaryngology–Head and Neck Surgery, Duke University Medical Center, Durham, North Carolina, USA