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