title: The aetiology of optic neuritis.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis; D009898:Optic Disk / Q000473:pathology; D009902:Optic Neuritis / Q000175:diagnosis* / Q000473:pathology