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. 2021 Jan 20;21(3):703. doi: 10.3390/s21030703

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© 2021 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 (http://creativecommons.org/licenses/by/4.0/).

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Examples of NFC applications for electrophysiology sensing. (a) Construction of a soft flexible cardiac sensor [49]. (b) The device twisted and bent [49]. (c) Results of comparing the heart rate measured by the sensor with commercial products [49].