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. 2021 Jan 29;11:2665. doi: 10.1038/s41598-021-82013-w

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© The Author(s) 2021, corrected publication 2021

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Time-based on the activity ratio per 1-h average. Activity ratio per 1-h average in GC (a), HG (b), and HG with 1 h removed after refreshment (c). The horizontal axis is elapsed time (h), and the vertical axis is activity ratio (%). The dashed line represents the average activity ratio. The horizontal bar in the figure shows the range of p-values. Average 32.5% and 63.2% in the figure are the average activity ratio during daytime and night-time. The recording time varies, so (a) is displayed from 12:00 to 07:00.