1 Department of Orthopaedic Surgery, Amsterdam UMC, Location AMC, Amsterdam Movement Sciences, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
2 Academic Center for Evidence Based Sports Medicine (ACES), Amsterdam, The Netherlands.
3 Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC) Research Center Amsterdam UMC, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
4 Department of Medical Biology, Amsterdam University Medical Centers, Amsterdam, The Netherlands.
5 Department of Orthopaedic Surgery, Amsterdam UMC, Location AMC, Amsterdam Movement Sciences, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands. g.m.kerkhoffs@amsterdamumc.nl.
6 Academic Center for Evidence Based Sports Medicine (ACES), Amsterdam, The Netherlands. g.m.kerkhoffs@amsterdamumc.nl.
7 Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC) Research Center Amsterdam UMC, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. g.m.kerkhoffs@amsterdamumc.nl.