Affiliation: | 1. Department of Anesthesiology, Næstved-Slagelse-Ringsted Hospitals, Næstved, Denmark;2. Department of Anesthesiology, Næstved-Slagelse-Ringsted Hospitals, Næstved, Denmark Department of Regional Health Research, The Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark;3. Copenhagen Trial Unit, Centre for Clinical Intervention Research, Dpt. 7812, Copenhagen University Hospital, Copenhagen, Denmark;4. Department of Anesthesiology, Bispebjerg and Frederiksberg Hospitals, Copenhagen, Denmark;5. Department of Regional Health Research, The Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark Copenhagen Trial Unit, Centre for Clinical Intervention Research, Dpt. 7812, Copenhagen University Hospital, Copenhagen, Denmark Department of Internal Medicine, Holbæk Hospital, Holbæk, Denmark;6. Department of Anesthesia, Gildhoj Private Hospital, Brøndby, Denmark;7. Department of Anesthesiology and Intensive Care, Holbæk Hospital, Holbæk, Denmark;8. Department of Orthopedic Surgery, Holbæk Hospital, Holbæk, Denmark;9. Orthopedic Research Unit, Department of Orthopedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark Department of Clinical Research, University of Southern Denmark, Odense, Denmark;10. Department of Anesthesiology, Zealand University Hospital Køge, Køge, Denmark |