title: Author response.
authors.forename: Elias S
authors.initials: ES
authors.lastname: Sotirchos
authors.forename: Peter A
authors.initials: PA
authors.lastname: Calabresi
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D009412:Nerve Fibers / Q000473:pathology*; D009471:Neuromyelitis Optica / Q000473:pathology*; D012160:Retina / Q000473:pathology*