This study was approved by the Institutional Review Board of Fudan University Shanghai Cancer Center (FUSCC) (IRB#090977-1) under the approval number of 2008223-9, and it was carried out in a consecutive NSCLC cohort who received surgical resection or biopsy at the Department of Thoracic Surgery and PD-L1 testing at the Department of Pathology in Fudan Shanghai Cancer Center from September 2017 to April 2021. The following clinicopathological factors were prospectively collected: age, sex, smoking history, sample type, tumor histology, TNM stage, tumor spread thorough air space (STAS), and common gene alterations. The distinguishment of multifocal or metastatic lung cancers was based on the criteria released by IASLC Lung Cancer Staging Project [6].
Copyright and License information: The Author(s) ©2022 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
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