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Authors
Kunigo, Tatsuya https://orcid.org/0000-0001-8835-5014
Yoshikawa, Yusuke
Yamamoto, Shuji
Yamakage, Michiaki
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Article History
Received: 8 October 2020
Accepted: 16 November 2020
First Online: 3 January 2021
Compliance with ethical standards
:
: Tatsuya Kunigo declares that he has no conflict of interest. Yusuke Yoshikawa declares that he has no conflict of interest. Shuji Yamamoto declares that he has no conflict of interest. Michiaki Yamakage declares that he has no conflict of interest.
: This study was approved by the Institutional Review Board of Obihiro Kosei General Hospital, Hokkaido, Japan (No. 2020–005).
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