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Chongqing is the largest of the four direct-controlled municipalities of the People's Republic of China. The municipality is divided into 38 subdivisions (3 were abolished in 1997, and Wansheng and Shuangqiao districts were abolished in October 2011 [77]), consisting of 26 districts, 8 counties, and 4 autonomous counties.
Alzheimer's disease (AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, [2] and is the cause of 60–70% of cases of dementia. [2][15] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation (including ...