1. Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK (Cruden)
2. Department of Cardiology, Wellington Public Hospital, Wellington, New Zealand (Harding)
3. Department of Cardiology, Royal Infirmary of Edinburgh, Edinburgh, UK (Flapan)
4. Wellcome Trust Clinical Research Facility, University of Edinburgh, Western General Hospital, Edinburgh, UK (Graham)
5. Public Health Sciences, University of Edinburgh, Edinburgh, UK (Wild)
6. Greater Glasgow and Clyde Health Board, Glasgow, UK (Slack)
7. Section of Public Health, University of Glasgow, Glasgow, UK (Pell)
8. Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK (Newby)