Istituto Auxologico Italiano, IRCCS, Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Milan, Italy. p.schwartz@auxologico.it.
European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart (ERN GUARD-HEART), Bruxelles, Belgium. p.schwartz@auxologico.it.