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. 2020 Jul 31;7:120. doi: 10.3389/fcvm.2020.00120

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Copyright © 2020 Pratap, Steinhubl, Neto, Wegerich, Peterson, Weiss, Patel, Chopra and Mills.

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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Boxplots of individual-level mean hourly heart rate variability feature, SDNN (log₁₀) across the three study sessions colored by participants' cohort status. The vertical orange line in each session shows the median value of the cohort for each session.