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. 2019 Mar 11;16(5):885. doi: 10.3390/ijerph16050885

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© 2019 by the authors.

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 (http://creativecommons.org/licenses/by/4.0/).

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Meta-regression analysis showing a statistically significant association between the pooled PSQI global score in police officers and the percentage of policemen on evening/night shift.