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Authors
Saito, Yoshitaka
Takekuma, Yoh
Kobayashi, Masaki
Sakamoto, Tatsuhiko
Yamashita, Hiroko
Sugawara, Mitsuru https://orcid.org/0000-0001-5350-2950
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Article History
Received: 28 January 2021
Accepted: 6 June 2021
First Online: 6 July 2021
Declarations
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: All the procedures performed in studies involving human participants were carried out 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. For this type of study, formal consent is not required.
: For this type of study, formal consent is not required.
: Not applicable.
: The authors declare no competing interests.
