1 Department of Cardiology, King's College Hospital NHS Foundation Trust, London, United Kingdom; King's British Heart Foundation Centre of Research Excellence, 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: paulscott3@nhs.net.
2 King's British Heart Foundation Centre of Research Excellence, 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 Department of Cardiology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom.
5 National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom; Department of Cardiology, Barts Health NHS Trust, London, United Kingdom; Institute of Cardiovascular Sciences, University College London, London, United Kingdom.
6 Department of Cardiology, Royal Devon and Exeter Hospital, Exeter, United Kingdom.
7 Department of Cardiology, Freeman Hospital, The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom.
8 National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom; Department of Cardiology, Cardiovascular Research Institute, Mater Private Network, Dublin, Ireland; Faculty of Health, University of Plymouth, Plymouth, United Kingdom.
9 Department of Cardiology, King's College Hospital NHS Foundation Trust, London, United Kingdom; King's British Heart Foundation Centre of Research Excellence, King's College London, London, United Kingdom; National Institute for Cardiovascular Outcomes Research (NICOR), NHS Arden & GEM Commissioning Support Unit, Leicester, United Kingdom.