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. 2021 Nov 5;9:742355. doi: 10.3389/fpubh.2021.742355

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Copyright © 2021 Wu, Liu and Wang.

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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Kaplan-Meier survival curves for patients with HCC during the follow-up period. UEBMI, Urban Employee Basic Medical Insurance; URRBMI, Urban and Rural Resident Basic Medical Insurance; HCC, hepatocellular carcinoma.