Miyagi, Takehiro
Tsuji, Daiki
Kawasakai, Yohei
Ishikawa, Hiroshi
Tanaka, Rei
Nakao, Masahiko
Nakagaki, Shigeru
Hayashi, Toshinobu
Ayuhara, Hideaki
Harada, Tomohiko
Tamaki, Shinya
Maeda, Akimitsu
Ohashi, Yasukata
Arakawa, Yuichiro
Fujita, Yukiyoshi
Yamamoto, Keisuke
Miyamoto, Yasunori
Yano, Takuya
Itoh, Kunihiko
Article History
Received: 20 May 2022
Accepted: 5 January 2023
First Online: 16 January 2023
Declarations
:
: The study protocol was approved by the ethics committee of each participating institution and conducted in accordance with the principles of the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards and with the Ethical Guidelines for Medical and Health Research Involving Human Subjects issued by the Ministry of Education, Culture, Sports, Science and Technology and the Ministry of Health, Labour and Welfare, Japan.
: As this was a retrospective study, written informed consent to participate was not obtained. Instead, we offered the patients the right to opt out.
: The authors declare no competing interests.