1. World Players’ Union (FIFPro), Hoofddorp, Scorpius 161, 2132 LR Hoofddorp, The Netherlands
2. Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
3. Academic Center for Evidence based Sports medicine (ACES), Academic Medical Center, Amsterdam, The Netherlands
4. Amsterdam Collaboration for Health & Safety in Sports (ACHSS), Academic Medical Center / VU University Medical Center,
5. St. Marianna University School of Medicine, Kawasaki, Japan
6. Amsterdam Collaboration for Health & Safety in Sports (ACHSS), Academic Medical Center / VU University Medical Center, Amsterdam, The Netherlands