1. Center for the Diagnosis and Treatment of Pericardial Diseases, Section of Cardiovascular Imaging, Department of Cardiovascular Medicine, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
2. Department of Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts
3. Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia
4. The Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Baltimore
5. Cardiovascular Imaging Section, Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA