title: Mental symptoms in vitamin-B-12 deficiency.
mesh_terms: D000752:Anemia, Pernicious / Q000150:complications* / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D001523:Mental Disorders / Q000175:diagnosis / Q000209:etiology*; D014806:Vitamin B 12 Deficiency / Q000150:complications*