1. Department of Emergency Medicine, Fiona Stanley Hospital, Murdoch 6150, Australia
2. Department of Medicine, University of South Carolina School of Medicine, Columbia, SC 29209, USA
3. Center da sandà Val Müstair, Santa Maria, 7537 Val Müstair, Switzerland
4. Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
5. Department of Emergency Medicine, National Taiwan University Hospital, Taipei 10617, Taiwan
6. Notfallzentrum, Krankenhaus der Barmherzigen Brüder Trier, 54292 Trier, Germany
7. Krankenhaus Nordwest, 60488 Frankfurt, Germany
8. Department Allgemeine Innere Medizin (DAIM), Kliniken Hirslanden Beau Site, Salem und Permanence, 3013 Bern, Switzerland