Fig. 1

The PRISMA flow diagram displays the details of the selection process. *From: 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;372:n71. doi: https://doiorg.publicaciones.saludcastillayleon.es/10.1136/bmj.n71.