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. 2022 Mar 30;9:852009. doi: 10.3389/fcvm.2022.852009

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Copyright © 2022 Yang, Xu, Zhou, Xue, Gao, Li, Sun, Yang, Liu, Zhao, Luo, Zeng, Zheng and Xiong.

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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Restricted cubic spline result of plasma betaine levels in relation to hazard ratio for the risk of clinical outcomes. Dark red line with 95% CI shaded in light red. HR, hazard ratio; CI, confidence interval.