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. 2020 Dec 7;13:1411–1426. doi: 10.2147/IJGM.S200929

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© 2020 Dyer et al.

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Study selection flowchart.18

Note: Adapted from Moher D, Liberati A, Tetzlaff J, Altman DG. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. 2009;6(7):e1000097. © 2009 Moher et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License.18