. 2021 Aug 18;11:701539. doi: 10.3389/fonc.2021.701539
Copyright © 2021 Zhu, Yang, Zeng, Li, Guan, Zhou, Wang, Liu, Gao, Qiu, Chen, Li, Zheng, Yuan, Zhang and Pan
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Figure 2.
Proportion of bleeding by WHO grades among the three groups.