1. Division of Communication Disorders, University of Wyoming, Laramie, Wyoming.
2. Department of Communication Disorders, University of Utah, Salt Lake City, Utah.
3. Department of Otolaryngology–Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, Indiana.
4. Department of Oral Facial Development, Indiana University School of Medicine, Indianapolis, Indiana.
5. Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana.
6. Department of Surgery, Case Western Reserve University, Cleveland, Ohio.