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Associated Press
Dr. Argye Elizabeth Hillis of John Hopkins Hospital, with her patient Robert Voogt, left, speaks to The Associated Press during an interview in Washington, Sunday, Feb. 14, 2016. Voogt suffers from primary progressive aphasia, a brain disorder. Families may not even seek care because they assume a loved one's increasingly garbled attempts to communicate are because of age-related dementia, said Hillis. (AP Photo/Manuel Balce Ceneta)

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