1. Physiotherapy Department, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
2. Health Rehabilitation Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
3. Division of Physical Therapy, School of Medicine, West Virginia University, South Morgantown, WV, USA
4. Department of Physical Therapy, King Fahad Specialist Hospital, Dammam, Saudi Arabia