. 2020 Nov 12;11:572569. doi: 10.3389/fphar.2020.572569
Copyright © 2020 Huang, Liu, Yu, Wang, Wu, Guo, Wang, Fang, Bai, Fang, Fan, Sun, Wu, Shi, Ma, Tang, Dai and Li.
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FIGURE 1.
Flow diagram of preferred reporting items for systematic reviews and meta-analyses (PRISMA).