1. Department of Orthopaedic Surgery, Clinical Orthopaedic Research Hvidovre, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
2. Physical Medicine and Rehabilitation Research - Copenhagen, Departments of Physiotherapy and Orthopaedic Surgery, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
3. Department of Orthopeadic Surgery, Amager and Hvidovre, Sports Orthopeadic Research Center - Copenhagen, Copenhagen University Hospital, Hvidovre, Denmark
4. Department of Orthopaedic Surgery, Copenhagen University Hospital Herlev and Gentofte, Borgmeste, Denmark
5. Clinical Research Centre, Copenhagen University Hospital, Amager and Hvidovre, Denmark