1 Department of Cardiology, Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran.
2 The Southern Arizona VA Health Care System and University of Arizona College of Medicine, Tucson, Professor of Medicine, The Southern Arizona VA Health Care System and University of Arizona Sarver Heart Center, 1501 North Campbell Avenue, Tucson, AZ 85724. E: rmova@aol.com.