Shiihara, Masahiro
Higuchi, Ryota http://orcid.org/0000-0003-2423-4154
Izumo, Wataru
Yazawa, Takehisa
Uemura, Shuichiro
Furukawa, Toru
Yamamoto, Masakazu
Funding for this research was provided by:
JSPS KAKENHI (18K08632)
Article History
Received: 27 December 2020
Accepted: 11 March 2021
First Online: 31 March 2021
Declarations
:
: All procedures involving human participants in this study were in accordance with the ethical standards of this institutional research committee and with the 1964 Helsinki Declaration. The requirement to obtain written informed consent from each patient was waived due to the study’s retrospective design. We used an “opt-out” method that was in accordance with the ethical guidelines.
: Not applicable.
: The authors declare no competing interests.