1. Department of Sports Traumatology M51 Bispebjerg and Frederiksberg Hospital Copenhagen Denmark
2. Institute of Sports Medicine M81 Department of Orthopaedic Surgery M Bispebjerg and Frederiksberg Hospital Copenhagen Denmark
3. Center for Healthy Aging Xlab Department of Biomedical Sciences Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
4. Department of Clinical Biochemistry Bispebjerg and Frederiksberg Hospital Copenhagen Denmark
5. Institute for Dental Research and Oral Musculoskeletal Biology, and Center for Biochemistry Medical Faculty University of Cologne Cologne Germany