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. 2021 Jan 8;10:591205. doi: 10.3389/fonc.2020.591205

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Copyright © 2021 Yang, Guo, Liu, Liu, Chen, Chen, OuYang, Han and Xie

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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Forest plot (A) and estimated survival curves (B, C) for progression free survival and overall survival. The numbers on the figure (B, C) mean absolute increase of the survival rates. IC, induction chemotherapy; O-E, observed minus estimated number of events; CI, confidence interval; HR, hazard ratio.