1. Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel , Petersgraben 4, CH-4031 Basel , Switzerland
2. GREAT network , Rome , Italy
3. BHF Centre for Cardiovascular Science, University of Edinburgh , Scotland , United Kingdom
4. Department of Cardiac Surgery, University Hospital Basel, University of Basel , Switzerland
5. Division of Internal Medicine, University Hospital Basel, University of Basel , Switzerland
6. Department of Intensive Care Medicine, University Hospital Basel, University of Basel , Basel , Switzerland
7. Critical Care Research Group, The Prince Charles Hospital, Brisbane and the University of Queensland , Brisbane , Australia
8. Leipzig Heart Center , Leipzig , Germany
9. Emergency Department, Hospital Clinic , Barcelona, Catalonia , Spain
10. Servicio de Urgencias, Hospital Clínico San Carlos , Madrid , Spain
11. Department of Cardiology, University Hospital Brno, Brno, Czech Republic and Medical Faculty, Masaryk University , Brno , Czech Republic
12. Emergency Department, University Hospital Zurich , Zurich , Switzerland
13. Emergency Department, University Hospital Basel, University of Basel , Switzerland
14. Emergency Department, Kantonsspital Luzern , Switzerland