1. Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
2. Mobility Impairment Research Center, Babol University of Medical Sciences, Babol, IR.Iran
3. Department of Speech Therapy, School of Rehabilitation, Babol University of Medical Sciences, Babol, Iran
4. Department of Speech Therapy, School of Rehabilitation Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
5. Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
6. Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences (USWR), Tehran, Iran