1. Myocardial Function Section, Imperial Centre for Translational and Experimental Medicine, Imperial College LondonLondon UK
2. Imperial Centre for Cardiac Engineering, Imperial College LondonLondon UK
3. Department of CardiologyImperial College Healthcare NHS TrustLondon UK
4. Department of CardiologyThe Barts Heart Centre, St Bartholomew’s Hospital, Barts Health NHS TrustLondon UK
5. Department of CardiologyDerriford Hospital, Plymouth Hospitals NHS TrustPlymouth UK
6. Department of CardiologyLeeds General Infirmary, Leeds Teaching Hospitals NHS TrustLeeds UK