1. Department of Emergency Medicine; Beaumont Hospital; Dublin Ireland
2. Emergency Care Research Unit (ECRU); Division of Population Health Sciences (PHS), Royal College of Surgeons in Ireland; Dublin 2 Ireland
3. Department of Pharmacology and Therapeutics; Trinity Centre for Health Sciences, St. James Hospital; Dublin Ireland
4. Department of Emergency Medicine; Queen's University; Kingston Canada
5. Emergency Medicine; UAMS; Little Rock AR USA
6. Department of Emergency Medicine; University of California, Davis Medical Centre; Sacramento USA
7. Department of Emergency Medicine; Limerick Regional Hospital; Limerick Ireland
8. Department of Emergency Medicine; University of Cincinnati; Cincinnati Ohio USA
9. Sunnybrook Health Sciences Centre, Division of Emergency Medicine; Toronto Canada