Shirai, Nobuyuki
Yamamoto, Suguru
Osawa, Yutaka
Tsubaki, Atsuhiro
Morishita, Shinichiro
Narita, Ichiei
Article History
Received: 6 November 2021
Accepted: 4 July 2022
First Online: 6 July 2022
Declarations
:
: The study protocol complied with the 1975 Declaration of Helsinki, which was revised in 2013. Approval was granted by the Ethics Committee of Niigata Rinko Hospital (approval number 2005–92), and all patients provided written informed consent. This study was registered in the University Hospital Medical Information Network (registration number 000040618).
: Not applicable.
: The authors declare that they have no competing interests.