1. Department of Cardiac Sciences, King Fahad Cardiac Centre, College of Medicine; King Saud University; Riyadh Kingdom of Saudi Arabia
2. College of Medicine; Mohammed bin Rashid University of Medicine and health sciences; Dubai United Arab Emirates
3. Department of Cardiology, Hamad Medical Corporation; Doha Qatar
4. Department of Cardiology, Royal Hospital; Muscat Oman
5. Cardiology Department, Saud Al Babtain Cardiac Center; Dammam Saudi Arabia
6. Department of Cardiology, Heart and vascular institute Cleveland clinic Abu Dhabi; United Arab Emirates
7. Mohammed Bin Khalifa Cardiac Center; Manama Bahrain
8. Department of Cardiology; Sana's University; Sana'a Yemen