Hayashi, Asako
Takahashi, Toshiyuki
Ueda, Yasuhiro
Sato, Yasuyuki
Okamoto, Takayuki http://orcid.org/0000-0002-6029-451X
Article History
Received: 1 November 2020
Revised: 15 December 2020
Accepted: 19 January 2021
First Online: 3 February 2021
Declarations
:
: All procedures performed in studies involving human participants were reviewed and approved by the Institutional Review Board of Hokkaido University Hospital and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: The authors declare no competing interests.