1. Institute of Life Sciences Scuola Superiore Sant'Anna Pisa Italy
2. Cardiology Division Fondazione Toscana Gabriele Monasterio Piazza Martiri della Libertà 33 Pisa 56124 Italy
3. University Hospital of Pisa Pisa Italy
4. CIBER Cardiovascular Instituto de Salud Carlos III Madrid Spain
5. Hospital Universitari Germans Trias i Pujol Badalona, Barcelona Spain
6. School of Biomedical Engineering and Imaging Sciences King's College London London UK