1. Prosthetics and Orthotics Department, School of Rehabilitation Sciences, The University of Jordan, Amman, Jordan
2. Physical Medicine and Rehabilitation Department, Rehabilitation Hospital, King Fahad Medical City, Riyadh, Saudi Arabia
3. Rehabilitation Technology Department, Rehabilitation Hospital, King Fahad Medical City, Riyadh, Saudi Arabia
4. Biostatistics Department, King Fahad Medical City, Riyadh, Saudi Arabia