1. Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2. Department of Physiotherapy, School of Rehabilitation Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3. Department of Physical Therapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
4. Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
5. KITE Research Institute, Toronto Rehabilitation Institute-University Health Network, Toronto, ON M4P 1E4, Canada
6. Department of Biostatistics and Epidemiology, Faculty of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran