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Authors
Mitamura, Katsuya
Norikane, Takashi
Yamamoto, Yuka http://orcid.org/0000-0002-3912-4217
Fujimoto, Kengo
Takami, Yasukage
Hoshikawa, Hiroshi
Toyohara, Jun
Nishiyama, Yoshihiro
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Article History
Received: 6 November 2020
Accepted: 5 January 2021
First Online: 10 February 2021
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was waived due to its retrospective nature.
: Not applicable.
: The authors declare that they have no competing interests.
