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. 2019 Feb 21;14:10. doi: 10.1186/s13024-019-0309-5

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Correlations between sleep spindle properties and CSF T-tau. Scatter plots of N2 spindle density (#/min. N2 sleep) (a), N2 spindle count (b), spindle duration (sec.) (c) and N2 fast spindle density (#/min. N2 sleep) (d) with CSF T-tau indicate significant associations at cross-section (n = 50 subjects)