PRISMA 2020 explanation and elaboration: updated guidance and exemplars for reporting systematic reviews
M. Page, D. Moher, P. Bossuyt, I. Boutron, T. Hoffmann, C. Mulrow, Larissa Shamseer, J. Tetzlaff, E. Akl, S. Brennan, R. Chou, Julie May Glanville, J. Grimshaw, A. Hrõbjartsson, M. Lalu, Tianjing Li, E. Loder, E. Mayo-Wilson, Steve McDonald, L. McGuinness, L. Stewart, James Thomas, A. Tricco, V. Welch, P. Whiting, J. McKenzie
British medical journal