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The mortality rate from Parkinson’s disease rose by about 63 percent in the United States over two decades, according to a new study. (John Moore/Getty Images)

The mortality rate from Parkinson’s disease rose by about 63 percent in the United States over two decades, according to a new study. (John Moore/Getty Images)

The mortality rate from Parkinson’s disease rose by about 63 percent in the United States over two decades, according to a new study. (John Moore/Getty Images)