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Authors
Yura, Masahiro
Yoshikawa, Takaki https://orcid.org/0000-0003-1936-9484
Wada, Takeyuki
Otsuki, Sho
Hayashi, Tsutomu
Yamagata, Yukinori
Katai, Hitoshi
Nishida, Toshirou
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Article History
Received: 13 December 2020
Accepted: 7 September 2021
First Online: 25 September 2021
Declarations
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: This study was conducted with the approval of the National Cancer Center Hospital Ethics Committee (No: 2017–077). Consent to participate of this study was guaranteed by optout. The local ethics committee granted the administrative permission to access the database used in our manuscript.
: Consent for publication was obtained.
: The authors have no conflicts of interests to declare in relation to this article.
