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. 2022 Jan 21;22(3):806. doi: 10.3390/s22030806

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Comparisons of BPW harmonic indices of AD patients, control, community (Sites A and B), and young subjects: (a) C_n, (b) CV_n, (c) P_n, and (d) P_n_SD. Data are mean and standard-deviation values. C₆–C₁₀ values have been multiplied by 10 to make the differences clearer. p values are listed in Table 3.