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. 2019 Mar 27;7(3):e12284. doi: 10.2196/12284

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©Tine Proesmans, Christophe Mortelmans, Ruth Van Haelst, Frederik Verbrugge, Pieter Vandervoort, Bert Vaes. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 27.03.2019.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mhealth and uhealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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A snapshot of a synchronized photoplethysmography signal and single-lead electrocardiogram in patient with sinus rhythm (left) and atrial fibrillation (right). The red dots indicate a detected heart beat. ECG: electrocardiogram; PPG: photoplethysmography.