1. Department of Cardiothoracic Surgery, Aalborg University Hospital, Aalborg, Denmark
2. Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
3. Atrial Fibrillation Study Group, Aalborg University Hospital, Aalborg, Denmark
4. Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
5. Unit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark
6. Department of Health Science and Technology, Aalborg University, Aalborg, Denmark