1. Head & Neck Institute, Cleveland Clinic Foundation, Cleveland, OH 44106, USA
2. Wayne State University School of Medicine, Detroit, MI 48202, USA
3. Department of Otolaryngology-Head & Neck Surgery, Henry Ford Hospital, Detroit, MI 48202, USA
4. Division of Speech-Language Sciences and Disorders, Department of Neurology, Henry Ford Hospital, Detroit, MI 48202, USA