1. King Fahad Cardiac Center, Department of Cardiac Sciences; College of Medicine, King Saud University; Riyadh Saudi Arabia
2. Prince Salman Heart Center; King Fahd Medical City; Riyadh Saudi Arabia
3. Cardiology Department; Tanta University; Egypt
4. Security Forces Hospital; Riyadh Saudi Arabia
5. North West Armed Forces Hospital; Tabuk Saudi Arabia
6. King Abdulaziz University Hospital; Jeddah Saudi Arabia
7. Prince Sultan Cardiac Center; Riyadh Saudi Arabia
8. King Faisal Cardiac Center; King Faisal Specialist Hospital; Riyadh Saudi Arabia
9. Madina Cardiac Center; AlMadina AlMonaoarah; Saudi Arabia
10. King Saud Medical Complex; Riyadh Saudi Arabia
11. Al-Eman Hospital; Riyadh Saudi Arabia
12. King Fahad General Hospital; Jeddah Saudi Arabia
13. King Fahd Hospital; Baha Saudi Arabia
14. Prince Sultan Cardiac Center; Hafouf Saudi Arabia
15. Armed Forces Hospital Southern Region; Khamis Mushayt Saudi Arabia
16. National Guard Hospital; Jeddah Saudi Arabia