1. Paediatric Neurology, Vall d'Hebron University Hospital and VHIR (Euro-NMD, ERN-RND); Barcelona Spain
2. Medical Imaging Center; University of Chile Clinical Hospital; Santiago Chile
3. Paediatric Neuroradiology, Vall d'Hebron University Hospital (Euro-NMD, ERN-RND); Barcelona Spain
4. Visual Pathway Laboratory, Neuroimmunology Center and Neurology Department, Biomedical Research Center August Pi i Sunyer (IDIBAPS); Hospital Clínic Barcelona; Spain
5. APHP-Neurology and Intensive Care Department. University Hospital Raymond Poincaré, Garches; U1179 Versailles University, Neuromuscular Disorders Reference Center of Nord-Est-Île de France; ERN Neuro-NMD France
6. Neuromuscular Unit, Department of Neurology and Neurosurgery, University of Chile Clinical Hospital
7. Department of Anatomy and Legal Medicine, Faculty of Medicine; University of Chile; Santiago Chile