Chida-Nagai, Ayako
Sato, Hiroki
Sato, Itsumi
Shiraishi, Masahiro
Sasaki, Daisuke
Izumi, Gaku
Yamazawa, Hirokuni
Cho, Kazutoshi
Manabe, Atsushi
Takeda, Atsuhito http://orcid.org/0000-0001-9913-5834
Article History
Received: 17 February 2021
Revised: 18 May 2021
Accepted: 20 July 2021
First Online: 21 August 2021
Declarations
:
: This study was performed in line with the principles of the Declaration of Helsinki. The Institutional Review Board of Hokkaido University Hospital for clinical research approved this study (approval no. 019–0452).
: The requirement for informed consent was waived due to the retrospective nature of the study.
: The requirement for informed consent was waived due to the retrospective nature of the study.
: The authors declare no competing interests.