title: Introduction to the supplement.
authors.affiliation: Neuroimaging Research Unit, Department of Neuroscience, Scientific Institute Ospedale San Raffaele, University of Milan, Milan, Italy. filippi.massimo@hsr.it
authors.forename: M
authors.initials: M
authors.lastname: Filippi
authors.forename: G
authors.initials: G
authors.lastname: Comi
mesh_terms: D002540:Cerebral Cortex / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000473:pathology