1. Department of Internal Medicine; Harlem Hospital Center/Columbia University; New York New York
2. Division of Cardiovascular Disease; Department of Medicine; University of Alabama at Birmingham; Birmingham Alabama
3. Section of Cardiovascular Imaging; Department of Cardiovascular Medicine, Heart and Vascular Institute; Cleveland Clinic; Cleveland Ohio
4. Section of Cardiology; Department of Internal Medicine; Harlem Hospital Center/Columbia University; New York New York