1. Department of Radiology, Brigham and Women’s Hospital, Boston, MA 02115, USA
2. First Department of Cardiology, School of Medicine, National Kapodistrian University of Athens, Hippokrateion General Hospital of Athens, 115 27 Athens, Greece
3. Department of Health Economics, Policy and Management, Karolinska Institutet, 171 77 Stockholm, Sweden
4. Division of Hospital Medicine, Jacobi Medical Center, NYC H+H, Albert Einstein College of Medicine, New York, NY 10461, USA
5. Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
6. Department of Economics, University of Piraeus, 185 34 Piraeus, Greece
7. Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT 06510, USA