title: [Various problems in the study of senile dementia].
authors.forename: A
authors.initials: A
authors.lastname: Igata
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000175:diagnosis / Q000209:etiology; D003704:Dementia / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans