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Authors
Fukui, Taro
Noda, Hiroshi
Watanabe, Fumiaki
Kato, Takaharu
Endo, Yuhei
Aizawa, Hidetoshi
Kakizawa, Nao
Iseki, Masahiro
Rikiyama, Toshiki
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Article History
Received: 16 October 2020
Accepted: 1 June 2021
First Online: 3 June 2021
Declarations
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: This study was reviewed and approved by the Ethics Committee of Jichi Medical University (17-062). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. The Ethics Committee of Jichi Medical University waived the need for informed consent because of the study’s retrospective nature.
: Not applicable.
: The authors have no conflicts of interest to declare.
