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Authors
Shin, Wonkyo http://orcid.org/0000-0002-5728-250X
Park, Sang-Yoon http://orcid.org/0000-0001-8325-6009
Kang, Sokbom http://orcid.org/0000-0002-8428-9555
Lim, Myong Cheol http://orcid.org/0000-0001-8964-7158
Seo, Sang-Soo http://orcid.org/0000-0003-2381-0965
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Funding
Funding for this research was provided by:
national cancer center, Korea (NCC-1910180)
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Article History
Received: 16 December 2020
Accepted: 20 April 2021
First Online: 1 May 2021
Declarations
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: This study was approved by the Institutional Review Board of National cancer center, Korea (IRB No. NCC2019–0272), and the requirement for informed consent was waived because of the retrospective nature of the present study. This study was conducted in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
