[The differential diagnosis of dementia--a remaining challenge].
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D000368:Aged; D003704:Dementia / Q000175:diagnosis* / Q000191:economics / Q000523:psychology* / Q000628:therapy; D003937:Diagnosis, Differential; D005858:Germany / Q000453:epidemiology; D006801:Humans; D019636:Neurodegenerative Diseases / Q000175:diagnosis / Q000523:psychology