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. 2023 Feb 17;46(5):zsad033. doi: 10.1093/sleep/zsad033

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© Sleep Research Society 2023. Published by Oxford University Press on behalf of the Sleep Research Society.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — The published saliva DLMO (mean ± SD) for healthy control participants (filled circles) and patients diagnosed with DSWPD (filled squares) aged between 20 and 31 years. The author and publication years are shown, together with the number of participants studied. Group n-weighted means ± SD for the healthy controls (open circle) and DSWPD (small square) are shown. Also shown is the n-weighted mean ± SD (large square) for this age group. The shaded area represents two SD of the means of the individual data.