1. Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark;
2. Department of Orthopedics, Slagelse Hospital, Region Zealand, Denmark;
3. Lund University, Department of Clinical Sciences Lund, Orthopedics, Lund, Sweden;
4. Department of Orthopedics and Traumatology, Odense University Hospital, Denmark;
5. Department of Orthopedics, Martina Hansens Hospital, Norway;
6. Norwegian Research Center for Active Rehabilitation, Division of Orthopedic Surgery, Oslo University Hospital, and Department of Sports Medicine, Norwegian School Sport Sciences, Norway