1. Ziekenhuis Oost Limburg; Genk Belgium
2. University of Hasselt; Hasselt Belgium
3. University of Groningen, University Medical Center Groningen; Groningen The Netherlands
4. Emergency Medicine, University of Helsinki, Helsinki University Hospital; Helsinki Finland
5. University of Paris Diderot, Hôpitaux Universitaires Saint Louis Lariboisière, APHP, U 942 Inserm, F-CRIN INI-CRCT; Paris France
6. Maastricht University Medical Center; Maastricht The Netherlands
7. Yale University; New Haven CT USA
8. Cleveland Clinic; Cleveland OH USA
9. University of Florence; Florence Italy
10. Université de Lorraine, Inserm, Centre d'Investigations Clinique 1433 and Inserm U1116; CHRU Nancy; F-CRIN INI-CRCT; Nancy France
11. University of Brescia; Brescia Italy
12. National and Kapodistrian University of Athens; Athens Greece
13. University of Cyprus; Nicosia Cyprus
14. University of Belgrade, Faculty of Medicine; Belgrade Serbia
15. UniversitätsSpital Zürich; Zürich Switzerland
16. IRCCS, San Raffaele Pisana; Rome Italy