1. Department of Cardiothoracic Surgery and Anaesthesia, Uppsala University Hospital, Uppsala, Sweden
2. Section of Thoracic Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
3. Department of Cardiothoracic and Vascular Surgery, Deutsches Herzzentrum Berlin, Berlin, Germany
4. Berlin Institute of Health (BIH), Berlin, Germany
5. Department of Cardiology and Clinical Physiology, Uppsala University Hospital, Uppsala, Sweden
6. Department of Medical Sciences, Uppsala Clinical Research Centre, Uppsala University, Uppsala, Sweden