Sakai, Nozomu
Hayano, Koichi
Mishima, Takashi
Furukawa, Katsunori
Takayashiki, Tsukasa
Kuboki, Satoshi
Takano, Shigetsugu
Kawasaki, Yohei
Matsubara, Hisahiro
Ohtsuka, Masayuki http://orcid.org/0000-0002-5091-1078
Article History
Received: 4 October 2021
Accepted: 20 February 2022
First Online: 1 April 2022
Declarations
:
: The retrospective study was performed in accordance with the principles of the Declaration of Helsinki. The study was approved by the Institutional Ethics Committee of the College of Medicine, Chiba University.
: Because of the retrospective nature of the study, informed consent was waived by the Institutional Ethics Committee of the College of Medicine, Chiba University. As an alternative, the opt-out consent was approved by the committee and obtained via our websites, where permission was requested for the use of the participants’ personal information in this study.
: The authors declare no competing interests.