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. 2023 Feb 13;7:e41691. doi: 10.2196/41691

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©Dong Han, Eric Y Ding, Chaeho Cho, Haewook Jung, Emily L Dickson, Fahimeh Mohagheghian, Andrew G Peitzsch, Danielle DiMezza, Khanh-Van Tran, David D McManus, Ki H Chon. Originally published in JMIR Cardio (https://cardio.jmir.org), 13.02.2023.

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 Cardio, is properly cited. The complete bibliographic information, a link to the original publication on https://cardio.jmir.org, as well as this copyright and license information must be included.

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Use case diagram of the symptom logging system. AF: atrial fibrillation; HR: heart rate; UConn: University of Connecticut; UID: user ID; UMass Chan: University of Massachusetts Chan Medical School.