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Authors
Liu, Xiu https://orcid.org/0000-0001-8993-013X
Ou, Kai https://orcid.org/0000-0003-2762-6719
Ma, Xiaoting https://orcid.org/0000-0003-1329-9761
Gao, Lizhen
Wang, Qi
Zhang, Haizeng
Yang, Lin https://orcid.org/0000-0001-5049-7519
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Article History
Received: 20 February 2022
Accepted: 4 July 2022
First Online: 21 July 2022
Declarations
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: All procedures performed in this study were in accordance with the ethical standards of the 1964 Helsinki declaration and its later amendments. This study was approved by the Ethics Committee of the National Cancer Center/Cancer Hospital, the Chinese Academy of Medical Sciences and Peking Union Medical College (approval number: 2022011210085902). As this study is retrospective, the requirement for informed consent was waived by the Ethics Committees of the National Cancer Center/Cancer Hospital, the Chinese Academy of Medical Sciences, and Peking Union Medical College.
: Not applicable.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as competing interests.
