1. Department of Cardiology University Hospital of Wales Cardiff UK
2. Keele Cardiovascular Research Group Institute of Applied Clinical Sciences, University of Keele Stoke‐on‐Trent UK
3. The University of Exeter Exeter UK
4. Department of Cardiology Queen Elizabeth Hospital Birmingham UK
5. Division of Statistics Biosensors SA Morges Switzerland
6. Department of Cardiology University Hospital NHS Trust Southampton UK
7. Department of Cardiology St. Bartholomews Hospital London UK
8. Royal Stoke Hospital, UHNM Stoke‐on‐Trent UK