1. Department of Cardiology, Bradford Teaching Hospitals NHS Trust, Bradford, UK
2. Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
3. Academic Department of Trauma and Orthopaedics, Floor D, Clarendon Wing, LGI, University of Leeds, Leeds, UK
4. NIHR Leeds Biomedical Research Centre, Chapel Allerton Hospital, Leeds, UK