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Zhang T, Yan R, Chen Q, et al. Body mass index, waist-to-hip ratio and cognitive function among Chinese elderly: a cross-sectional study. BMJ Open 2018;8:e022055. doi: 10.1136/bmjopen-2018-022055.
This article was previously published with missing equal contributor statement.
Tao Zhang, Rui Yan, and Qifeng Chen, contributed equally to this work.
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