1. Department of Otolaryngology–Head and Neck Surgery, The University of Iowa, Iowa City
2. Department of Speech-Language Pathology and Audiology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
3. Department of Communication Sciences and Disorders, The University of Iowa, Iowa City
4. Department of Communication Sciences and Disorders, Augustana College, Rock Island, IL
5. Psykologcentret NV, Copenhagen NV, Denmark