Iwakiri, Kentaro http://orcid.org/0000-0002-5906-7715
Ohta, Yoichi
Fujii, Takashi
Minoda, Yukihide
Kobayashi, Akio
Nakamura, Hiroaki
Article History
Received: 3 January 2021
Accepted: 15 January 2021
First Online: 27 January 2021
Compliance with ethical standards
:
: All 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 and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This trial was registered as a trial with the University Hospital Medical Information Network (UMIN) registration number UMIN000034024.
: The study protocol was approved by the institutional review board, and all patients provided written informed consent to participate.