1. Hospital Clínic Atrial Fibrillation Unit (UFA), Cardiovascular Institute, Hospital Clínic Universitat de Barcelona Barcelona Catalonia Spain
2. Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Barcelona Catalonia Spain
3. Department of Cardiology and Angiology Charité – University Medicine Berlin Berlin Germany
4. DZHK (German Centre for Cardiovascular Research) Berlin Germany
5. Centro de Investigación Biomédica en Red Cardiovascular (CIBERCV) Madrid Spain