title: Differential diagnosis of dementia.
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000175:diagnosis*; D003704:Dementia / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005072:Evoked Potentials, Auditory; D006801:Humans; D014805:Vitamin B 12 / Q000097:blood
chemical_list: D014805:Vitamin B 12