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. 2022 May 31;10:884349. doi: 10.3389/fpubh.2022.884349

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Copyright © 2022 Zhang, Ji, Zhong, Zhu, Zhang, Ge, Kang and Bi.

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 analysis of overall survival among pancreatic cancer patients with lung metastasis at diagnosis. (A) overall, (B) stratified by the extent of extrapulmonary metastatic disease, and (C) stratified by type of treatment.