1. Department of Otorhinolaryngology–Head and Neck Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
2. Division of Speech Language Pathology, Good Shepherd–Penn Partners, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
3. Department of Otolaryngology–Head and Neck Surgery, Augusta University, Augusta, Georgia, USA
4. Division of Gastroenterology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA