1 Paediatric Neurology and Muscular Diseases Unit, G Gaslini Institute, Genova, Italy; Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genova, Italy. Electronic address: strianop@gmail.com.
2 Paediatric Neurology and Muscular Diseases Unit, G Gaslini Institute, Genova, Italy; Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genova, Italy.