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. 2020 Jun 4;10:9147. doi: 10.1038/s41598-020-65564-2

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Anatomical distribution of acute AF termination sites in all 21 patients. All AF termination sites were located within low voltage <0.5 mV (in AF) areas. Most AF termination sites were located at the antero-septal LA and anterior base of the left atrial appendage (10/21 and 5/21, respectively). In two cases AF termination occurred proximal to the pulmonary vein antrum, two further occurred within the proximal and mid coronary sinus and the two remaining AF terminations occurred at the lateral wall of the right atrium (crista terminalis area) and the superior portion of the right atrial antero-septum (between SVC and RAA).