1. Department of Cardiology; Rasoul-e-Akram Hospital; Iran University of Medical Sciences; Tehran Iran
2. Department of Cardiology; Shahid Rajaee Heart Hospital; Iran University of Medical Sciences; Tehran Iran
3. Department of Cardiac Surgery; Heart Valve Research Center; Shahid Rajaee Heart Hospital; Iran University of Medical Sciences; Tehran Iran
4. Department of Internal Medicine; Rasoul-e-Akram Hospital; Iran University of Medical Sciences; Tehran Iran
5. Department of Cardiology; Student Scientific Research Center; Tehran University of Medical Sciences; Tehran Iran