1. The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen
2. Department of Clinical Medicine, University of Bergen, Bergen
3. National Resource Center for Late Effects after Cancer, Oslo University Hospital, the Norwegian Radium Hospital, Oslo
4. Faculty of Medicine, University of Oslo, Oslo
5. Musculoskeletal Tumor Center, Department of Oncology, Haukeland University Hospital, Bergen
6. Department of Clinical Science
7. Department of Clinical Dentistry, University of Bergen, Bergen, Norway