49. 老年人的数量,老年痴呆症患者的数量,护理费用,全球范围内的增长` Numbers of elderly, numbers of Alzheimer patients, costs of care, increasing worldwide by National Institutes of Health 高清作品[20%]

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Numbers of elderly, numbers of Alzheimer patients, costs of care, increasing worldwide-

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老年人的数量,老年痴呆症患者的数量,护理费用,全球范围内的增长-美国国立卫生研究院

~ Numbers of elderly, numbers of Alzheimer patients, costs of care, increasing worldwide--National Institutes of Health (美国艺术家, 1887-)