1. Cardiac Imaging, Barts Heart Centre, St. Bartholomew's Hospital, 2nd Floor, King George V Block, Barts Heart Centre, St. Bartholomew's Hospital, London EC1A 7BE, UK
2. Institute for Cardiovascular Sciences, University College London, Gower Street, London WC1E 6BT, UK
3. Program of Cardiovascular Diseases, Center for Applied Medical Research, University of Navarra, Avda/ Pío XII 55, 31008, Pamplona, Spain
4. CIBERCV, National Institute of Health Carlos III, C/ Monforte de Lemos 3-5, 28029, Madrid, Spain
5. Department of Histopathology, Great Ormond Street Hospital for Children National Health Service Trust, Great Ormond Street, London WC1N 3JH, UK
6. Department of Cardiology and Cardiac Surgery, University of Navarra Clinic, Avda/ Pío XII 36, 31008, Pamplona, Spain