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Authors
Okada, Kouji https://orcid.org/0000-0001-7191-2857
Usui, Kensuke
Kikuchi, Daisuke
Takahashi, Masanori
Watanabe, Yoshiteru
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Article History
Received: 14 July 2020
Accepted: 12 August 2020
First Online: 27 August 2020
Compliance with ethical standards
:
: The authors have declared that no conflict of interest exist.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee at which the studies were conducted (IRB approval number 2020-4-015), and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
