1. Department of Emergency Medicine, Hospital of South West Jutland, Denmark
2. Centre South West Jutland, Institute of Regional Health Research, University of Southern Denmark, Finsensgade 35, Esbjerg, Denmark
3. Department of Emergency Medicine, Odense University Hospital, Sdr. Boulevard 29, Odense C, Denmark
4. Department of Medicine, Hospital of South West Jutland, Finsensgade 35, Esbjerg, Denmark
5. Department of Clinical Pharmacology, Odense University Hospital, J. B. Winsløws Vej 19, 2., Odense C, Denmark
6. Emergency Medicine Academic Unit, Chinese University of Hong Kong, 2/F, Main Clinical Block and Trauma Centre, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR