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. 2022 Apr 28;13:744661. doi: 10.3389/fpsyt.2022.744661

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Copyright © 2022 Husum, Ruud, Lickiewicz and Siqveland.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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PRISMA 2020 flow diagram for new systematic reviews which included searches of databases, registers and other sources. ^*Number of records identified from each database is presented in the Appendix 1 in the description of the database search. From: Page et al. (24). For more information, visit: http://www.prisma-statement.org/.