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PRISMA 2020 flow diagram for new systematic reviews which included searches of databases and registers only. From Page et al. (1). For more information, visit http://www.prisma-statement.org/. 1. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021 Mar 29; n71.
