1. Department of Cardiology, Kurdistan University of Medical Sciences, Sanandaj, Iran
2. Cardiocvascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
3. Student Research Committee, Medical School, Iran University of Medical Sciences, Tehran, Iran
4. Department of Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
5. Department of Echocardiography, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran