1. Department of Cardiology, Canary Islands University Hospital, La Laguna , 38320 Santa Cruz de Tenerife , Spain
2. Intensive Cardiac Care Unit, Cardiology Department, Konstantopouleio General Hospital , Athens , Greece
3. Department of Anesthesia and Intensive Care B, Department of Surgery, Dentistry, Gynaecology and Paediatrics, University of Verona, AOUI-University Hospital Integrated Trust of Verona , Policlinico G.B. Rossi, P.le L. Scuro, Verone , Italy
4. Department of Emergency Medicine and Critical Care, Besançon University Hospital , Besançon , France
5. INSERM CIC 1431, Besançon University Hospital , Besançon , France
6. Department of Emergency Medicine, Medical University Vienna , Vienna , Austria
7. Department of Cardiology, University Hospital of Copenhagen, Rigshospitalet, The Heart Center , Copenhagen , Denmark
8. Medical Faculty and University Hospital, University of Cologne , Cologne , Germany
9. European Resuscitation Council (ERC) , Niel , Belgium
10. German Resuscitation Council (GRC) , Ulm , Germany
11. Intensive Cardiac Care Unit, Cardiology Department, Hospital de Sant Pau, IIB-Sant Pau, Universitat Autònoma de Barcelona , Barcelona , Spain
12. Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER-CV) , Madrid , Spain
13. Warwick Medical School, University of Warwick , Coventry , UK
14. Department of Anaesthesia and Intensive Care Medicine, Royal United Hospital , Bath , UK
15. Sorbonne Université INSERM Unité Mixte de Recherche (UMRS) 1166, Institute of Cardiometabolism and Nutrition , Paris , France
16. Service de Médecine Intensive-Réanimation, Hôpital Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition , Paris , France
17. Kingston University and St. Georges, University of London , London , UK
18. Departments of Cardiology and Critical Care, Royal Brompton & Harefield Hospitals , London , UK
19. National Heart and Lung Institute, Imperial College London , London , UK
20. Department of Cardiology, Amager-Hvidovre Hospital, University Hospital of Copenhagen , Copenhagen , Denmark