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. 2022 Jun 15;9(1):e001199. doi: 10.1136/bmjresp-2022-001199

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© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) 2020 flow diagram showing the screening and eligibility process using inclusion/exclusion criteria