title: Vitamin B12 deficiency and multiple sclerosis.
authors.forename: R M
authors.initials: RM
authors.lastname: Ransohoff
authors.forename: D W
authors.initials: DW
authors.lastname: Jacobsen
authors.forename: R
authors.initials: R
authors.lastname: Green
mesh_terms: D000752:Anemia, Pernicious / Q000150:complications; D005260:Female; D006801:Humans; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000150:complications*; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000209:etiology*
chemical_list: D014805:Vitamin B 12