1. Department of Post-Qualifying Healthcare Practice, Birmingham City University, City South Campus, Birmingham B15 3TN, UK
2. Department of Cardiology, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent ST4 6QG, UK
3. Department of Cardiology, Manchester University NHS Foundation Trust, Manchester M13 9PL, UK
4. Department of Cardiology, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2WB, UK
5. School of Medicine, Keele University, Keele ST5 5BG, UK