1 Minneapolis Heart Institute and Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA.
2 Athens Naval and Veterans Hospital, Athens, Greece.
3 Red Cross Hospital of Athens, Athens, Greece.
4 Henry Ford Cardiovascular Division, Detroit, Michigan, USA.
5 WellSpan York Hospital, York, Pennsylvania, USA.
6 Massachusetts General Hospital, Boston, Massachusetts, USA.
7 Emory University Hospital Midtown, Atlanta, Georgia, USA.
8 Division of Cardiology, Department of Medicine, University of Washington, Seattle, Washington, USA.
9 Biruni University Medical School, Istanbul, Turkey.
10 Cleveland Clinic, Cleveland, Ohio, USA.
11 Division of Cardiology, New York University, New York, USA.
12 Minneapolis Heart Institute and Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA. Email: [email protected].