1. Department of Anaesthesia and Intensive CareEastern Hospital Gothenburg Sweden
2. Department of Anaesthesia and Intensive CareInstitute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
3. Department of Molecular and Clinical MedicineInstitute of Medicine, Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
4. Department of Cardiothoracic SurgerySahlgrenska University Hospital Gothenburg Sweden
5. Department of MedicineSkaraborg Hospital Lidköping Sweden