1. Department of Audiology, School of Rehabilitation Sciences, Babol University of Medical Sciences, Babol, Mazandaran, Iran
2. Department of Otolaryngology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
3. Department of Communication Sciences and Disorders, University of Cincinnati, Cincinnati, OH, USA
4. Behavioral Sciences Research Center, Life Style Institute, Faculty of Nursing, Baqiyatallah University of Medical Sciences, Tehran, Iran
5. Department of Speech therapy, School of Rehabilitation Sciences, Babol University of Medical Sciences, Babol, I.R. Iran