1. Cardiac Division, Department of Echocardiography, Royal Brompton Hospital, Part of Guy’s and St Thomas’ NHS Foundation Trust , London , UK
2. Department of Cardiology, Brussels University Hospital , Brussels , Belgium
3. Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Pôle de Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain , Av Hippocrate, 10/2806 Brussels , Belgium
4. Fondazione Toscana Gabriele Monasterio , Via Moruzzi, 1, Pisa 56124 , Italy
5. Clinical Research Domain, Baker Heart and Diabetes Institute , Melbourne , Australia
6. Department of Cardiology, Leiden University Medical Centre , Abinusdreef 2, 2300RC Leiden , The Netherlands