1. Cardiovascular Department, King Faisal Specialist Hospital and Research Center Jeddah Saudi Arabia
2. College of Medicine, King Saud bin Abdulaziz University for Health Science Jeddah Saudi Arabia
3. College of Medicine, King Abdulaziz University Jeddah Saudi Arabia
4. Cardiothoracic Surgery Department, Faculty of Medicine, Tanta University Tanta Egypt
5. King Fahad General Hospital Jeddah Saudi Arabia