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A case of primary progressive aphasia. A 14-year follow-up study with neuropathological findings
1998
Brain
Primary progressive aphasia has been clinically defined as a progressive language deficit leading to the dissolution of almost all language functions with relative preservation of other cognitive functions until late in the course of the disease. Two types of language impairment have been described for primary progressive aphasia, which differ with respect to the degree of fluency of spontaneous speech. Whereas some authors have emphasized nonfluency as a defining characteristic of primary
doi:10.1093/brain/121.1.115
pmid:9549492
fatcat:jbgf6cf36zaw3afvbgmvnj3hdy