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. 2022 Jan 13;19(2):869. doi: 10.3390/ijerph19020869

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Adapted PRISMA 2020 flow diagram for new systematic reviews, including searches of databases, registers and other sources. N.B. asterisk is used as truncation.