title: Neuromyelitis optica is a variant of multiple sclerosis.
authors.affiliation: Department of Neurology, University of Pennsylvania School of Medicine, 3400 Spruce St, Philadelphia, PA 19104, USA. galetta@mail.med.upenn.edu
authors.forename: Steven L
authors.initials: SL
authors.lastname: Galetta
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Bennett
mesh_terms: D049672:History, 19th Century; D006801:Humans; D008279:Magnetic Resonance Imaging; D009103:Multiple Sclerosis / Q000175:diagnosis*; D009471:Neuromyelitis Optica / Q000145:classification* / Q000175:diagnosis* / Q000266:history / Q000503:physiopathology