国内寿命的确上升了,80岁以后痴呆症多了,我们的爷爷奶奶没听说过有得痴呆症
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美国老年痴呆 5.3 million are 65 and older and 200,000 are younger
-wxc1217-
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06/03/2019 postreply
07:57:38