1. Inherited Cardiac Diseases Unit, Department of Cardiology (C.T., A.F.-F., R.B.), Hospital Universitari Dr Josep Trueta, Girona, Spain.
2. Medical Science Department, School of Medicine (C.T., O.C., P.L.-O., G.S.-B., R.B.)
3. Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Madrid, Spain (C.T., O.C., E.Z., A.G., E.A., R.B.).
4. Cardiovascular Genetics Center, Institut d'Investigacions Biomèdiques de Girona (O.C., A.F.-F., M.A., R.B.), University of Girona, Spain.
5. Biochemistry and Molecular Genetics Department, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (O.C.), University of Barcelona, Spain.
6. Intensive Cardiac Care Unit, Department of Cardiology (P.L.-O.), Hospital Universitari Dr Josep Trueta, Girona, Spain.
7. Cardiology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain (E.Z., A.C.).
8. Medical Science Department, School of Medicine, Universitat Autònoma de Barcelona, Spain (E.Z.).
9. Arrhythmias Unit, Hospital Sant Joan de Déu (G.S.-B., S.C., L.G.-C.), University of Barcelona, Spain.
10. Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain (A.G., P.J., E.A.).
11. Institut Clínic Cardiovascular, Hospital Clínic (A.G., P.J., E.A.), Universitat de Barcelona, Spain.
12. Department of Cardiology, Hospital Universitario Arnau de Vilanova, Lleida, Spain (C.T.-Q.).
13. Institut de Recerca Biomèdica de Lleida, Spain (C.T.-Q.).
14. Radiology Department (V.P.), Hospital Universitari Dr Josep Trueta, Girona, Spain.
15. Pathology Department, Hospital Clínic (D.M.), Universitat de Barcelona, Spain.