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Authors
Itou, Chihiro https://orcid.org/0000-0002-2884-3515
Arai, Yasuaki
Sone, Miyuki
Sugawara, Shunsuke
Kimura, Shintaro
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Article History
Received: 11 December 2021
Accepted: 31 March 2022
First Online: 15 April 2022
Declarations
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: The authors declare that they have no conflict of interest.
: All procedures performed in this study were in accordance with the ethical standards of the institutional committee (National Cancer Center Hospital) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This study (# 2018–049) was approved by our institutional review board and the need for informed consent was waived.
: For this type of study, consent for publication is not required.
