1. Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden
2. Department of Radiology, Universitätsklinikum Erlangen, Erlangen, Germany
3. Department of Radiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
4. Department of Radiology, Boston University School of Medicine, Boston
5. Center for Muscle and Joint Health, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark