1. Clinic for Orthopaedic and Trauma Surgery; Heidelberg University Hospital; Heidelberg Germany
2. Hugh Williamson Gait Analysis Laboratory; Royal Children's Hospital; Melbourne Victoria Australia
3. Paediatric Orthopaedic Unit; Department of Paediatric Surgery; Medical University of Graz; Graz Austria
4. Orthopaedic Hospital for Children; Behandlungszentrum; Aschau im Chiemgau Germany
5. Murdoch Children's Research Institute; Parkville Victoria Australia
6. The University of Melbourne; Carlton Victoria Australia