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Authors
Kono, Kenichi
Moriyama, Yoshifumi
Yabe, Hiroki
Hara, Ayaka
Ishida, Takeki
Yamada, Tetsuya
Nishida, Yusuke
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Article History
Received: 11 June 2020
Accepted: 13 October 2021
First Online: 12 November 2021
Declarations
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: The study protocol complied with the Helsinki Declaration standards and was approved by the Ethical Committee of the International University of Health and Welfare (Approval number 17-Io-95). The requirement for written informed consent was waived as this study used retrospective data.
: Not Applicable.
: The authors declare that they have no competing interests.
