1. Department of Molecular Medicine and Surgery Karolinska Institutet Stockholm Sweden
2. Department of Cardiothoracic Surgery Karolinska University Hospital Stockholm Sweden
3. Department of Cardiology Aarhus University Hospital Aarhus Denmark
4. Division of Perioperative Medicine and Intensive Care, Section Cardiothoracic Surgery and Anesthesiology Karolinska University Hospital Stockholm Sweden
5. Department of Cardiothoracic Surgery Rigshospitalet Copenhagen Denmark
6. Department of Cardiothoracic Surgery Aarhus University Hospital Aarhus Denmark