1. Cardiovascular Research Group; Institute of Cardiovascular Sciences, University of Manchester; Manchester United Kingdom
2. Manchester Heart Centre; Manchester Royal Infirmary; Manchester United Kingdom
3. Institute of Population Health; University of Manchester; Manchester United Kingdom
4. Department of Cardiology, Dorset Heart Centre; Royal Bournemouth Hospital; Bournemouth United Kingdom
5. Department of Cardiology; University Hospital of North Staffordshire, Stoke-on-Trent; North Staffordshire United Kingdom
6. AGEING: Epidemiology Group; School of Medicine and Dentistry, University of Aberdeen; Scotland United Kingdom
7. Department of Cardiology, Freeman Hospital; Newcastle Upon Tyne and Institute of Cellular Medicine; Newcastle University; Newcastle United Kingdom
8. Department of Cardiology; Queen Elizabeth Hospital; Edgbaston Birmingham United Kingdom
9. Department of Cardiology; The James Cook University Hospital; Middlesbrough United Kingdom