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Authors
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Funding
Funding for this research was provided by:
National Key Research and Development Project "Research and Development of Digital Diagnostic and Medical Equipment" (20171FC0114204)
Liaoning Province Key Research and Development Project (2018225037)
Liaoning Province Natural Science Foundation (20180550748)
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Article History
Received: 15 November 2019
Accepted: 6 May 2020
First Online: 19 May 2020
Ethics approval and consent to participate
: The present study was approved by ethnics committee of Liaoning Cancer Hospital and Institute (20190971). Due to the retrospective nature without identifiable patient information, the requirement for informed consent was waived.
: Not applicable.
: All authors declare there are no conflicts of interest.
