1. Cardiovascular Department, Center for Diagnosis and Treatment of Cardiomyopathies, Azienda Sanitaria Universitaria Integrata (ASUITS), University of Trieste, Via P. Valdoni 7, 34100 Trieste, Italy
2. Centre for Heart Muscle Disease, Institute of Cardiological Sciences, University College London and St. Bartholomew's Hospital, Gower St, Bloomsbury, London WC1E 6BT, UK