1. Department of Communication Disorders, Truman State University, Kirksville, Missouri
2. Department of Otolaryngology Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, Indiana
3. Department of Communication Disorders, University of Utah, Salt Lake City, Utah
4. Department of Communication Disorders and Sciences, California State University, Northridge, Northridge, California
5. Department of Communication Disorders and Sciences, University of Buffalo, Buffalo, New York