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. 2021 Sep 23;8:741377. doi: 10.3389/fcvm.2021.741377

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Copyright © 2021 Chou, Chung, Chang, Lin, Lo, Hu, Chao, Liao, Tuan, Lin, Chang, Liu, Wu, Huang, Chen, Cheng, Liu, Lugtu, Jain, Feng, Chang and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Flowsheet of the inclusion, classification of subgroups, recurrence number, and patterns in our study cohort. AFL, atrial flutter; AF, atrial fibrillation; AT, atrial tachycardia; PVI, pulmonary vein isolation; EP, electrophysiology.