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. 2018 Aug 29;8:13053. doi: 10.1038/s41598-018-31411-8

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Examples of the heart signal waveforms obtained from the IR-UWB radar. The agreements between the radar and ECG were grossly excellent in both the healthy volunteers with NSR (A) and the patients with AF (B). The red dots indicate the same time points on both the radar waveform and ECG.