Taniguchi, Tomohiro https://orcid.org/0000-0001-6392-3767
Tsuha, Sanefumi
Shiiki, Soichi
Narita, Masashi
Article History
Received: 19 December 2021
Accepted: 21 February 2022
First Online: 1 March 2022
Declarations
:
: The study proposal was approved by the Ethics Committee of OCH (No. 49, 2014). Because this was a retrospective observational study, and because Japanese national observational study guidelines did not require individual consent from subjects, the Ethics Committee of OCH waived the consent to participate for this study.
: Not applicable.
: The authors declare that they have no competing interests.