1. Echocardiography Research Center; Rajaie Cardiovascular Medical and Research Center; Iran University of Medical Sciences; Tehran Iran
2. Atherosclerosis Research Center; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
3. Transfusion Research center; High Institute for Research and Education in Transfusion Medicine; Department of Thalassemia Clinic; Tehran Iran
4. Rajaie Cardiovascular Medical and Research Center; Iran University of Medical Sciences; Tehran Iran
5. Rasul Akram General Hospital; Iran university of medical science; Tehran Iran
6. Blood Transfusion Research Center; High Institute for Research and Education in Transfusion Medicine; Tehran Iran