APA (7th ed.) Citation

Page, M. J., McKenzie, J. E., Bossuyt, P. M., Boutron, I., Hoffmann, T. C., Mulrow, C. D., . . . Moher, D. (2021). The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. BMJ (Online), 372, n71. https://doi.org/10.1136/bmj.n71

Chicago Style (17th ed.) Citation

Page, Matthew J., et al. "The PRISMA 2020 Statement: An Updated Guideline for Reporting Systematic Reviews." BMJ (Online) 372 (2021): n71. https://doi.org/10.1136/bmj.n71.

MLA (9th ed.) Citation

Page, Matthew J., et al. "The PRISMA 2020 Statement: An Updated Guideline for Reporting Systematic Reviews." BMJ (Online), vol. 372, 2021, p. n71, https://doi.org/10.1136/bmj.n71.