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. 2022 Apr 21;8(1):e002058. doi: 10.1136/rmdopen-2021-002058

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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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Flow diagram of stages of systematic literature review. Cochrane Library encompasses library of: systematic reviews; systematic review protocols; controlled clinical trials. INAHTA, International Network of Agencies for Health Technology Assessment.