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. 2018 Dec 6;9:1721. doi: 10.3389/fphys.2018.01721

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Copyright © 2018 Cabrera DeBuc, Somfai, Arthur, Kostic, Oropesa and Mendoza Santiesteban.

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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Sample images used in the fractal analysis. Images in the left column are the raw images obtained with the EasyScan system, while those in the right are their respective skeleton images that were used in the fractal analysis. Row (A) is from a healthy cognitively individual (MoCA score range: 29.6–25.2), Row (B) is from an MCI subject (MoCA score range: 25.2–19), and Row (C) is from a participant with more cognitive deterioration than MCI (MoCA score range: 21 to 11.4). MoCA, Montreal Cognitive Assessment.