Yoshida, Keisuke
Shimizu, Sayaka
Kita, Yohei
Takagi, Wei Han
Shibagaki, Yugo
Sakurada, Tsutomu https://orcid.org/0000-0003-2434-0483
Article History
Received: 15 November 2021
Accepted: 7 March 2022
First Online: 25 March 2022
Declarations
:
: All the authors have declared no competing interest.
: This article does not contain any studies with animals performed by any of the authors.
: All the procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee at which the studies were conducted (IRB approval number 5043) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was not necessary because of the retrospective nature of the study. Thus, the need for individual written informed consent was waived. However, a declaration related to data usage was published on the hospital website (. Accessed 10 Nov 2021). The study information was published on the internet so that patients could use the division of graduate student affairs and research promotion websites to opt-out of the study if they did not want their data used for research purposes.