. 2021 Apr 16;9(4):e21087. doi: 10.2196/21087
©Xiaomin Xu, Shujuan Chen, Junning Chen, Zhikang Chen, Liming Fu, Dingchen Song, Min Zhao, Haifeng Jiang. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 16.04.2021.
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Figure 1.
CONSORT flowchart of the study.