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. 2018 Aug 23;8(8):e022202. doi: 10.1136/bmjopen-2018-022202

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© Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Flowchart of the systematic review process. SBAR, situation, background, assessment, recommendation. *No additional studies were identified through screening of the references of the included articles.