1. College of Medical, Veterinary and Life Sciences; University of Glasgow; Glasgow UK
2. School of Health and Wellbeing, College of Medical, Veterinary and Life Sciences; University of Glasgow; Glasgow UK
3. Molecular and Clinical Medicine; University of Dundee; Dundee UK
4. Institute of Health Informatics Research; University College London; London UK
5. King's College Hospital; London UK
6. Department of Cardiology; Royal Devon & Exeter Healthcare Foundation Trust; Exeter UK
7. Heart Research Institute; Sydney Australia
8. Department of Primary Care; University of Exeter Medical School, Truro Campus, Knowledge Spa, Royal Cornwall Hospitals Trust; Truro UK
9. Primary Care Research Group, Institute of Health Research; University of Exeter Medical School; Exeter UK
10. Clinical Trials Unit, Warwick Medical School; University of Warwick; Coventry UK
11. Department of Respiratory Sciences; University of Leicester; Leicester UK
12. MRC/CSO Social and Public Health Sciences Unit & Robertson Centre for Biostatistics, Institute of Health and Well Being; University of Glasgow; Glasgow UK