1. Division of Cardiovascular Disease, University of Alabama at Birmingham, AL
2. Cardiovascular Division, University of Minnesota, Minneapolis, MN
3. Department of Cardiology, North Shore University Hospital, Northwell Health, Manhasset, NY
4. Division of Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
5. Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
6. Section of Cardiology, Birmingham Veterans Affairs Medical Center, Birmingham, AL