ADVANCE FOR USE SATURDAY, AUG. 19, AND THEREAFTER – In this May 26, 2017, photo, Mary Read poses for a photograph with her dog Princess in her home in Lititz, Pa. Diagnosed with early-onset Alzheimer's disease at age 50, Read has become an advocate in the seven years since, serving as an Alzheimer's Association ambassador, starting a local Memory Cafe support group, speaking to groups and canvassing Congress. (Andy Blackburn/LNP via AP)
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