黑龙江省垦区福利院65岁以上老人阿尔茨海默病患病率调查
흑룡강성은구복리원65세이상노인아이자해묵병환병솔조사
Alzheimer's Disease prevalence survey among the people over the age of 65 in the welfare house in Farming areas of Heilongjiang province
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