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Authors
Zhao, Kewei
Wang, Chunsheng
Shi, Fang
Huang, Yong
Ma, Li
Li, Minghuan
Song, Yipeng
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Article History
Received: 20 July 2020
Accepted: 2 January 2021
First Online: 14 January 2021
Ethics approval and consent to participate
: The ethics committee of Shandong Cancer Hospital and Institute approved the study. Also, administrative permissions to access the patients’ clinical data used in our research were granted by the ethical review board. And written informed consent was waived because of its retrospective design.
: Not applicable.
: The authors declare that they have no competing interests.
