1 Department of Cardiology, King's College Hospital NHS Foundation Trust, London, United Kingdom; King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular and Metabolic Medicine & Sciences, King's College London, London, United Kingdom; National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom. Electronic address: paul.scott@kcl.ac.uk.
2 King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular and Metabolic Medicine & Sciences, King's College London, London, United Kingdom.
3 National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom.
4 Robertson Centre for Biostatistics, School of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom.
5 Department of Cardiology, Freeman Hospital, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom.
6 National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom; Department of Cardiology, University Hospitals Dorset NHS Foundation Trust, Bournemouth, United Kingdom.
7 National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom; Cardiovascular Research Institute, Mater Private Network, Dublin, Ireland; Faculty of Health, University of Plymouth, Plymouth, United Kingdom.
8 Department of Cardiology, King's College Hospital NHS Foundation Trust, London, United Kingdom; King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular and Metabolic Medicine & Sciences, King's College London, London, United Kingdom; National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom.