1 Department of Neurosciences and Pediatrics University of California Los Angeles California USA.
2 Department of Neurology Rady Children's Hospital Encinitas California USA.
3 Rady Children's Institute for Genomic Medicine San Diego California USA.
4 Neurodegenerative Diseases Research Group, Vall Hebron Research Institute Vall Hebron University Hospital Barcelona Spain.
5 Department of Clinical and Movement Neurosciences University College London Queen Square Institute of Neurology London United Kingdom.
6 Lysosomal Storage Disorders Unit Royal Free Hospital National Health Service Foundation Trust and University College London London United Kingdom.
7 Rare Diseases and Inborn Errors of Metabolism Unit Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona Barcelona Spain.
8 Neuroradiology Department Vall Hebron University Hospital Barcelona Spain.
9 Department of Neurology Vall Hebron University Hospital Barcelona Spain.
10 Developmental Neurosciences, Zayed Centre for Research into Rare Diseases in Children Great Ormond Street Institute of Child Health, UCL London United Kingdom.