1. Emergency Department; Christchurch Hospital; Christchurch New Zealand
2. Christchurch Heart Institute; University of Otago; Christchurch New Zealand
3. Department of Mental Health; Royal Brisbane and Women's Hospital; Brisbane Australia
4. University of Queensland; Brisbane Australia
5. Department of Emergency Medicine; Hennepin County Medical Center; Minneapolis MN
6. Emergency Department; Royal Brisbane and Women's Hospital; Brisbane Australia
7. Cardiology Department; Royal Brisbane and Women's Hospital; Brisbane Australia
8. Emergency Department; Southmead Hospital; North Bristol NHS Trust; Bristol UK
9. Cardiovascular Research Institute; National University of Singapore; Singapore
10. Department of Pathology; University of Otago; Christchurch New Zealand