. 2021 Jun 11;9(6):e24116. doi: 10.2196/24116
©Meina Lv, Tingting Wu, Shaojun Jiang, Wenjun Chen, Jinhua Zhang. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 11.06.2021.
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Figure 1.
Flow diagram of the selection of studies. mHealth: mobile health; RCT: randomized controlled trial.