1. Department of Nuclear Medicine, London Health Sciences Centre, London, Canada, Department of Cardiac Imaging, Prince Sultan Cardiac Center Qassim PSCCQ, Buraydah, El Qassim, Saudi Arabia
2. Faculty of Medicine, Suliman Al Rajhi Colleges, Buraydah, El Qassim, Saudi Arabia, Internal Medicine Department, Faculty of Medicine, Cairo University, Egypt
3. Faculty of Medicine, Suliman Al Rajhi Colleges, Buraydah, El Qassim, Saudi Arabia, Critical Care Medicine Department, Faculty of Medicine, Cairo University, Egypt
4. Department of Cardiac Imaging, Prince Sultan Cardiac Center Qassim PSCCQ, Buraydah, El Qassim, Saudi Arabia
5. Department of Cardiology, Prince Mohammad Bin Abdulaziz Hospital, Riyadh, Saudi Arabia
6. Department of medicine, College of Medicine, Qassim University, El Qassim, Saudi Arabia
7. Department of Pharmacology, College of Medicine, Qassim University, El Qassim, Saudi Arabia