[1] Childrens Hosp Westmead, Kids Res Inst, Sydney Med Sch, Neuroimmunol Grp,Inst Neurosci & Muscle Res, Westmead, NSW, Australia
[2] Westmead Hosp, Dept Neurol, Sydney, NSW, Australia
[3] Kyushu Univ, Grad Sch Med Sci, Dept Neurol, Neurol Inst, Fukuoka 812, Japan
[4] Kyushu Univ, Neurol Inst, Grad Sch Med Sci, Dept Neurol Therapeut, Fukuoka 812, Japan