1 Department of Otolaryngology - Head and Neck Surgery, Drexel University College of Medicine, Philadelphia, PA, USA; Thomas Jefferson University Choir, Philadelphia, PA, USA; Department of Otolaryngology - Head and Neck Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Otolaryngology and Communication Sciences Research, Lankenau Institute for Medical Research, Wynnewood, PA, USA. Electronic address: [email protected].
2 BWH Voice Program, Brigham and Women's Hospital, Boston, PA, USA.
3 BWH Voice Program, Brigham and Women's Hospital, Boston, PA, USA; Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, PA, USA.