1. Rehabilitation Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
2. Cardiac Sciences Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
3. King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
4. Alhada Military Hospital, Taif, Saudi Arabia
5. School of Healthcare Sciences, Cardiff University, UK