1. Division of Cardiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy
2. Department of Medicine, Section of Cardiology, University of Verona, Verona, Italy
3. Cardiomyopathy Unit, Careggi University Hospital, Florence, Italy
4. Cardiology Department, Careggi University Hospital, Florence, Italy
5. Department of Pediatric Cardiology, Meyer Children's Hospital, Florence, Italy
6. Hypertrophic Cardiomyopathy Center, Division of Cardiology, Tufts Medical Center, Boston, MA, USA
7. Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
8. Cardiovascular Research Centre, Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, London, UK
9. Department of Cardiology, San Luca Hospital, Istituto Auxologico Italiano, Milano, Italy