Frailty and cognitive frailty of the elderly in Zhengzhou community
SUN Huan, QIAO Yong-tao, XIA Yu, LU Zhi-min, WANG Zhong-min, ZHOU Li-na
South China Journal of Preventive Medicine . 2021, (10): 1262 -1266 .  DOI: 10.12183/j.scjpm.2021.1262

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