Page, MJ; McKenzie, JE; Bossuyt, PM; Boutron, I; Hoffmann, TC; Mulrow, CD; Shamseer, L; ... Moher, D; + view all Page, MJ; McKenzie, JE; Bossuyt, PM; Boutron, I; Hoffmann, TC; Mulrow, CD; Shamseer, L; Tetzlaff, JM; Akl, EA; Brennan, SE; Chou, R; Glanville, J; Grimshaw, JM; Hróbjartsson, A; Lalu, MM; Li, T; Loder, EW; Mayo-Wilson, E; McDonald, S; McGuinness, LA; Stewart, LA; Thomas, J; Tricco, AC; Welch, VA; Whiting, P; Moher, D; - view fewer (2021) The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. PLoS Medicine , 18 (3) , Article e1003583. 10.1371/journal.pmed.1003583.