1. Pediatric Neurology and Muscular Diseases Unit; Department of Neurosciences, Rehabilitation, Ophtalmology, Genetics, Maternal and Child Health; Institute “G. Gaslini”; University of Genova; Genoa Italy
2. Department of Neurology; University Hospital Antwerp; Antwerp Belgium
3. Pediatric Neurology and Muscular Diseases Unit; Laboratory of Neurogenetics; Institute “G. Gaslini”; Genoa Italy