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. 2017 Aug 2;8:555. doi: 10.3389/fphys.2017.00555

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Copyright © 2017 Bhogal and Mani.

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) or licensor 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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An example of DFA Analysis on SpO₂ variability data showing the linear trend when plotting (n) and F (n) on a log-log scale. The arrow indicates the approximate point of the cross-over phenomenon.