. 2020 Nov 30;8(11):e24375. doi: 10.2196/24375
©Huizhen Jiang, Yuanjie Li, Xuejun Zeng, Na Xu, Congpu Zhao, Jing Zhang, Weiguo Zhu. Originally published in JMIR Medical Informatics (http://medinform.jmir.org), 30.11.2020.
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Figure 2.
Data filtering process.