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. 2018 Sep 25;11:481–492. doi: 10.2147/JMDH.S175512

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© 2018 Sterling et al. This work is published and licensed by Dove Medical Press Limited

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PRISMA study flow diagram.

Notes: PRISMA flow diagram of reviewed and included studies. The figure was created with web-based systematic review software package Covidence (https://www.covidence.org/).