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Authors
Sakai, Daiki
Matsumiya, Wataru https://orcid.org/0000-0003-3495-7460
Kusuhara, Sentaro
Nakamura, Makoto
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Article History
Received: 15 December 2020
Accepted: 17 May 2021
First Online: 14 June 2021
Declarations
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: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Kobe University Graduate School of Medicine (Kobe, Japan) and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.Because of the retrospective study design and the use of deidentified patient data, the need to obtain written informed consent was waived.
: Consent is not required as the information is anonymized and the submission does not include images that may identify the persons.
: The authors declare that they have no competing interests.
