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Authors
Ryu, Bikei https://orcid.org/0000-0003-0323-6628
Sato, Shinsuke
Mochizuki, Tatsuki
Shima, Shogo
Inoue, Tatsuya
Okada, Yoshikazu
Niimi, Yasunari
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Article History
Received: 5 August 2021
Accepted: 8 September 2021
First Online: 16 September 2021
Declarations
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: The authors declare that they have no conflict of interest.
: All procedures performed in this series involving human participants were in accordance with the ethical standards of the institutional research committee (Saint Luke’s International Hospital, No. 21-R014) and the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The need for written informed consent was waived because of the retrospective design of the study.
: This manuscript has not been published or presented elsewhere in part or in entirety and is not under consideration by another journal. All authors discussed the results, commented on the paper, and approved the final version of the manuscript for publication.
