1. Athlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
2. Youth Physical Development Unit, School of Sport, Cardiff Metropolitan University, Cardiff, UK
3. Sport Performance Research Institute, New Zealand (SPRINZ), AUT University, Auckland, New Zealand
4. School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
5. Division of Sports Medicine, Cincinnati Children’s Hospital, Cincinnati, OH, USA
6. Department of Pediatrics and Orthopaedic Surgery, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
7. The Micheli Center for Sports Injury Prevention, Boston, MA, USA
8. Department of Orthopaedics, University of Pennsylvania, Philadelphia, PA, USA
9. Centre for Sport Science and Human Performance, Waikato Institute of Technology, Hamilton, New Zealand