1. Department of AAU Energy, Aalborg University, 9220 Aalborg East, Denmark
2. Department of Clinical Medicine, Aalborg University Hospital, 9000 Aalborg, Denmark
3. Section of Electrophysiology, Department of Cardiology, Aalborg University Hospital, 9000 Aalborg, Denmark
4. Department of Cardiothoracic Surgery, Aalborg University Hospital, 9000 Aalborg, Denmark