[1] Univ Melbourne, Murdoch Childrens Res Inst, Ctr Res Excellence Cerebral Palsy, Melbourne, Vic, Australia
[2] Univ Melbourne, Orthopaed Dept, Melbourne, Vic, Australia
[3] Univ Melbourne, Royal Childrens Hosp, Neurodev & Disabil, Melbourne, Vic, Australia
[4] Univ Melbourne, Dept Paediat, Melbourne, Vic, Australia