1. Emergency Department Aberdeen Royal Infirmary Aberdeen UK
2. School of Medicine, Medical Sciences and Nutrition University of Aberdeen Aberdeen UK
3. Scottish Ambulance Service Edinburgh UK
4. Department of Clinical Biochemistry Aberdeen Royal Infirmary Aberdeen UK
5. Medical Statistics Team University of Aberdeen Aberdeen UK
6. BHF Centre for Cardiovascular Science University of Edinburgh Edinburgh UK
7. BHF Cardiovascular Biomarker Laboratory University of Edinburgh Edinburgh UK
8. Department of Non‐Communicable Epidemiology London School of Hygiene and Tropical Medicine London UK
9. Usher Institute University of Edinburgh Edinburgh UK