1. Department of Public Health Aarhus University Aarhus Denmark
2. Department of Clinical Research University of Southern Denmark Odense Denmark
3. Department of Orthopaedics and Traumatology Odense University Hospital Odense Denmark
4. R82 A/S Gedved Denmark
5. Department of Physiotherapy and Occupational Therapy Aarhus University Hospital Aarhus Denmark
6. Orthopaedic Research Unit, Department of Clinical Research University of Southern Denmark Odense Denmark
7. Research Unit for Active Living, Department of Sports Science and Clinical Biomechanics University of Southern Denmark Odense Denmark
8. Interdisciplinary Research Unit, Elective Surgery Centre Silkeborg Regional Hospital, Regional Hospital Central Jutland Odense Denmark