Akiyama, Shoshi
Tanaka, Takaaki
Udaka, Jun
Inagaki, Naoya
Kumagae, Yoshio
Chazono, Masaaki
Matsuoka, Tatsuki
Saito, Mitsuru
Article History
Received: 9 September 2021
Accepted: 10 January 2022
First Online: 21 January 2022
Declarations
:
: The study was conducted in accordance with The Code of Ethics of the World Medical Association (Declaration of Helsinki) and was approved by the Institutional Review Board of NHO Utsunomiya National Hospital (No. 2019-1-7). The requirement for informed consent was waived owing to the retrospective nature of this study.
: Informed written consent was obtained from all patients.
: The authors declare that there is no conflict of interest.