Ikeda, Shinsuke http://orcid.org/0000-0001-5601-9374
Uchiyama, Katsufumi http://orcid.org/0000-0003-0475-7759
Minegishi, Yojiro http://orcid.org/0000-0002-1489-2180
Nakamura, Masaki http://orcid.org/0000-0003-1859-2342
Takaso, Masashi http://orcid.org/0000-0003-2407-9123
Article History
Received: 8 November 2019
Accepted: 23 July 2020
First Online: 6 August 2020
Compliance with ethical standards
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee (Kitasato University Medical Ethics Organization, KMEO B16-68) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: All procedures performed in studies involving human participants were 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.
: The authors declare that they have no conflict of interest.