1. The Inherited Cardiac Diseases Unit The Heart Hospital/University College London London UK
2. Department of Statistical Science University College London London UK
3. Cardiology Department and Research Unit A Coruña University Hospital Galician Health Service Spain
4. Unit of Inherited Cardiovascular Diseases, 1st Department of Cardiology University of Athens Athens Greece
5. Institute of Cardiology, Department of Specialised, Experimental and Diagnostic Medicine University of Bologna Bologna Italy
6. Cardiac Department University Hospital Virgen Arrixaca Murcia‐Cartagena s/n, El Palmar Murcia Spain
7. Monaldi Hospital Second University of Naples Naples Italy
8. Heart Failure and Inherited Cardiac Diseases Unit Hospital Universitario Puerta del Hierro Majadahonda Madrid Spain
9. Biostatistics Group, University College London Hospitals/University College London Clinical Research Centre University College London London UK