1. Centre for Inherited Cardiovascular Diseases, Great Ormond Street Hospital, London UK (G.N., J.J., E.F., H.F., E.L., E.C., J.P.K.).
2. Institute of Cardiovascular Sciences, University College London, UK (G.N., J.J., P.M.E., J.P.K.).
3. St. Bartholomew’s Centre for Inherited Cardiovascular Disease, St. Bartholomew’s Hospital, West Smithfield, London, UK (E.Q., P.M.E.).
4. Health in Code S.L., Scientific Department, A Coruña, Spain (M.N.C., J.P.O.).
5. Member of ERN GUARDHEART (European Reference Network for Rare and Complex Diseases of the Heart (P.M.E., J.P.K.).