1. Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Switzerland (J.d.F.d.L., P.B., T.N., T.Z., J.W., R.T., C.P., D.W., J.B., L.K., I.S., J.L., E.M., M.K., T.R.).
2. GREAT Network, Roma, Italy (J.d.F.d.L., P.B., T.N., T.Z., O.M., E.S., L.C., M.F., F.J.M.-S., S.D.S., W.F.P., B.M., J.W., R.T., C.P., D.W., J.B., L.K., I.S.).
3. Division of Cardiology, University of Illinois at Chicago, IL (P.B.).
4. Hospital Clinic, Barcelona, Catalonia, Spain (O.M., E.S.).
5. Department of Emergency Medicine, Kantonsspital Luzern, Switzerland (M.C.).
6. Department of Emergency Medicine, Hospital of Liestal, Switzerland (N.G.).
7. Royal Brisbane & Women’s Hospital, Herston, Australia (L.C.).
8. Christchurch Hospital, Christchurch, New Zealand (M.T.).
9. Servicio de Urgencias, Hospital Clínico San Carlos, Madrid, Spain (F.J.M.S.).
10. Emergency Medicine, Department of Medical-Surgery Sciences and Translational Medicine, University Sapienza Rome, Sant’Andrea Hospital, Italy (S.D.S.).
11. Baylor College of Medicine, Department of Emergency Medicine, Houston, TX (W.F.P.).
12. 2nd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland (B.M.).
13. Department of General and Interventional Cardiology, University Heart Center Hamburg, University Hospital Hamburg-Eppendorf, Hamburg, Germany (R.T.).
14. Department of Heart Surgery, University Hospital Basel, Switzerland (L.K.).
15. Emergency Department, University Hospital Zurich, Switzerland (D.I.K.).
16. Department of Cardiology, Inselspital, Bern, University Hospital, University of Bern, Switzerland (T.R.).