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. 2017 Aug 31;14(5):4231–4237. doi: 10.3892/etm.2017.5084

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Copyright: © Guo et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 1. — Expansive atrial myocytes and accumulated collagen in the patients with AF and rheumatic heart disease. (A) Hematoxylin and eosin staining of the right atrial tissue of patients in the SR and AF groups. (B) Masson staining of the right atrial tissue of patients in the SR and AF groups. Magnification, ×400. (C) Collagen volume fraction of the SR and AF groups. *P<0.05 vs. SR group. SR, sinus rhythm; AF, atrial fibrillation.