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. 2019 Jan 17;8(2):e010903. doi: 10.1161/JAHA.118.010903

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© 2019 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ 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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Univariable correlations of the outcome parameters in the clinical cohort. Circles and edges represented variables and pairwise Spearman's correlation, respectively. Red circles represent independent variables (ie, pulmonary regurgitation and QRS duration); blue circles represent the outcome variables. Orange edges show a positive correlation between 2 variables; green edges show a negative one. The thicker an edge is, the stronger the correlation is. RVEF indicates right ventricular ejection fraction; VO ₂, oxygen consumption. PRF indicates pulmonary regurgitant fraction.