1. Department of Orthotics and Prosthetics, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran;
2. Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran;
3. Department of Rehabilitation Management, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran;
4. Iran-Helal Institute of Applied Science and Technology, Tehran, Iran