1. Department of Rehabilitation Medicine, Amsterdam, Movement Sciences, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
2. Faculty of Rehabilitation Sciences, REVAL, Hasselt University, Hasselt University, Diepenbeek, Belgium
3. Research & Development, OIM Orthopedie, Assen, The Netherlands
4. Emma Children’s Hospital, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands