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Article History

Received: 5 June 2020

Accepted: 16 September 2020

First Online: 25 September 2020

Compliance with ethical standards

:

: The authors declare that they have no conflict of interest.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (the Ethics Committee of Kitasato University Hospital (No. B19-254)) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: Informed consent was obtained from all individual participants included in the study.

: The authors affirm that human research participants provided informed consent for the publication of their data.

: The authors has not used any previously unreported software or custom computer code to generate results reported in this manuscript.