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. 2022 Jul 22;101(29):e29632. doi: 10.1097/MD.0000000000029632

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Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal.

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Figure 2. — Income and survival analysis. The Kaplan-Meier survival curves of overall survival according to those who did and did not receive PSK. The median overall survival was 6.49 years (95% CI 5.22–7.63) in the PSK group and 3.59 years (95% CI 3.38–3.80) in the control group (log-rank test: P < .001).