1. Department of Cardiology Herlev and Gentofte University Hospital Herlev Denmark
2. Department of Emergency Medicine Brigham and Women's Hospital 75 Francis Street, Neville House Boston MA 02115 USA
3. Division of Cardiovascular Medicine Brigham and Women's Hospital Boston MA USA
4. Department of Emergency Medicine Rhode Island Hospital, Warren Alpert Medical School of Brown University Providence RI USA
5. Harvard Medical School Boston MA USA
6. Smidt Heart Institute Cedars‐Sinai Medical Center Los Angeles California
7. Framingham Heart Study Framingham Massachusetts
8. Institute of Cardiovascular and Medical Sciences University of Glasgow Glasgow UK