1. 1 Department of Orthopedics, Kolding Hospital, Kolding
2. 2 Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense
3. 3 Institute of Clinical Research, University of Southern, Denmark
4. 4 Department of Clinical Microbiology, Aalborg University Hospital
5. 5 Department of Clinical Medicine, Aalborg University, Aalborg
6. 6 Department of Clinical Microbiology, Vejle Hospital, Vejle
7. 7 Institute of Regional Health Research, University of Southern, Denmark
8. 8 Department of Orthopedics, Vejle Hospital, Vejle
9. 9 Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark