| Affiliation: | 2. Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, Illinois;2. Department of Communication Sciences and Disorders, The University of Utah, Salt Lake City, Utah;2. Student Research Committee, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran;3. Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran;4. Department of Otolaryngology - Head and Neck Surgery, Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania;2. Department of Communication Sciences and Disorders, Corporacion Universitaria Iberoamericana, Vocology Center, Bogota, Colombia;3. Clinica Las Condes, Santiago, Chile;4. Clinica Bicentenario, Santiago, Chile;5. Department of Otolaryngology, Clínica Universidad de los Andes, Santiago, Chile |
