1. Myocardial Function Section, National Heart and Lung Institute; Imperial College; London United Kingdom
2. Photonics Group, Department of Physics; Imperial College London; London United Kingdom
3. Statistics Advisory Service; Imperial College London; London United Kingdom
4. NIHR Cardiovascular Biomedical Research Unit; Royal Brompton Hospital; London United Kingdom
5. Centre for Pathology, Department of Medicine; Imperial College London; United Kingdom