1. Department of Cardio, Vascular and Thoracic Surgery, Odense University Hospital , Odense, Denmark
2. Department of Clinical Medicine, Faculty of Health, Odense University , Odense, Denmark
3. Department of Clinical Medicine, Faculty of Health, Aarhus University , Aarhus, Denmark
4. Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital , Aarhus, Denmark