1. Department of Medicine, Center for Resuscitation Science, Karolinska Institute, Solna, Sweden
2. Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
3. Emergency Medical Services of the Hradec Kralove Region, Czech Republic
4. Department of Anesthesiology and Intensive Care, Norrtälje Hospital, Norrtälje, Sweden
5. Emergency Department and SAMU, Centre Hospitalier Régional Universitaire de Lille, Lille, France
6. Emergency Department, St Maria Hospital, Halle, Belgium
7. Sistema d'Emergències Mèdiques, Barcelona, Catalunya, Spain
8. Empresa Pública de Emergencias Sanitarias, Almería, Andalucía, Spain
9. School of Health and Social Work, University of Hertfordshire, Hertfordshire, United Kingdom
10. Emergency Department, University Hospitals of Leuven, Leuven, Belgium
11. Department of Emergency Medicine, University Hospital of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
12. Department of Physiology and Pharmacology, Karolinska Institute, and Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden