1. Clinical Cardiology, AOU Cagliari, Department of Clinical Sciences and Public Health, University of Cagliari, Italy
2. Department of Cardiothoracic Surgery, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK
3. Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, VUmc, Amsterdam, The Netherlands
4. Division of Cardiology, Department of Cardiac, Thoracic and Vascular Sciences, University of Padova, Padova, Italy