1. Department of Anaesthesia and Intensive CareHaukeland University Hospital Bergen Norway
2. Department of Breast and Endocrine SurgeryHaukeland University Hospital Bergen Norway
3. Department of Clinical ScienceUniversity of Bergen Bergen Norway
4. Clinic of SurgeryHaukeland University Hospital Bergen Norway
5. NORCE Norwegian Research Centre ASUniversity of Bergen Bergen Norway
6. Department of Clinical MedicineUniversity of Bergen Bergen Norway