1. Department of Otolaryngology – Head and Neck Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA, USA
2. Department of Otolaryngology – Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
3. Department of Public Health Sciences, The Pennsylvania State University, College of Medicine, Hershey, PA, USA
4. Department of Otolaryngology – Head and Neck Surgery, Thomas Jefferson University, Sidney Kimmel Medical College, Philadelphia, PA, USA