Ushimaru, Shu
Shimizu, Sayaka
Osako, Kiyomi
Shibagaki, Yugo
Sakurada, Tsutomu https://orcid.org/0000-0003-2434-0483
Article History
Received: 28 May 2023
Accepted: 19 August 2023
First Online: 1 September 2023
Declarations
:
: All the authors have declared no competing interest.
: All 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 20 March 2023). 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.
: Our article does not contain any animal studies performed by any of the authors.