1. Institute of Sports Medicine Copenhagen; Department of Orthopedic Surgery M; Bispebjerg Hospital and Centre for Healthy Aging; Faculty of Health Sciences; University of Copenhagen; Copenhagen; Denmark
2. Department of Clinical Biomechanics and Exercises Science; University of Southern Denmark; Odense; Denmark
3. Department of Physical Therapy; Herlev Hospital; Herlev; Denmark
4. Department of Radiology and the Parker Institute Bispebjerg; Frederiksberg Hospital; Copenhagen NV; Denmark