[1] Univ Amsterdam, Acad Med Ctr, Dept Neuropathol, NL-1100 DE Amsterdam, Netherlands
[2] Univ Amsterdam, Emma Childrens Hosp AMC, Dept Pediat Neurol, NL-1100 DE Amsterdam, Netherlands
[3] Univ Med Ctr, Dept Pathol, Utrecht, Netherlands
[4] Univ Amsterdam, Acad Med Ctr, Dept Neurol, Neurogenet Lab, NL-1105 AZ Amsterdam, Netherlands
[5] Free Univ Amsterdam, VU Med Ctr, Dept Pathol, Amsterdam, Netherlands