A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2004; you can also visit the original URL.
The file type is
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 primarydoi:10.1093/brain/121.1.115 pmid:9549492 fatcat:jbgf6cf36zaw3afvbgmvnj3hdy