[1] Childrens Hosp Eastern Ontario, Ottawa, ON, Canada
[2] UCL, Dev Neurosci Res & Teaching Dept, Dubowitz Neuromuscular Ctr, Gt Ormond St Inst Child Hlth, London, England
[3] NIHR Gt Ormond St Hosp Biomed Res Ctr, London, England
[4] Gt Ormond St Hosp NHS Fdn Trust, London, England
[5] UNSW Sydney, UNSW Med & Hlth, Sch Clin Med, Sydney, Australia
[6] Sydney Childrens Hosp Network, Dept Neurol, Randwick, NSW, Australia
[7] Washington Univ, Div Pediat Neurol, Dept Neurol, Sch Med, St Louis, MO USA
[8] Novartis Pharmaceut, Basel, Switzerland
[9] Novartis Global Drug Dev Neurosci, E Hanover, NJ USA
[10] Freischlager Consulting, Bad Nauheim, Germany