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. 2021 Apr 9;9(4):e26167. doi: 10.2196/26167

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©Tien Yun Yang, Li Huang, Shwetambara Malwade, Chien-Yi Hsu, Yang Ching Chen. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 09.04.2021.

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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Subgroup analysis of the study population, including a comparison of summary receiver operating curves between the low-risk study population, which included patients with and without atrial fibrillation, and high-risk study population, which included only patients with atrial fibrillation, for (A) non-12-lead electrocardiogram and (B) photoplethysmography.