title: Psychosis in vitamin B 12  deficiency.
mesh_terms: D000752:Anemia, Pernicious / Q000188:drug therapy / Q000209:etiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D019965:Neurocognitive Disorders / Q000188:drug therapy / Q000209:etiology*; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000150:complications*
chemical_list: D014805:Vitamin B 12