Sakurada, Tsutomu http://orcid.org/0000-0003-2434-0483
Koitabashi, Kenichiro
Kohatsu, Kaori
Kojima, Shigeki
Shibagaki, Yugo
Article History
Received: 13 May 2021
Accepted: 29 May 2021
First Online: 4 June 2021
Declarations
:
: All authors declare no conflicts of interest in relation to this manuscript.
: This article does not contain any studies with animals performed by any of the authors. All procedures performed in studies involving human participants were in accordance with the ethical standards of the Ethics Committee of St. Marianna University School of Medicine (approval number 4633) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The requirement for individual written informed consent was waived due to the retrospective nature of the study. A declaration of data use is published on the website (ExternalRef removed). The study information was published on the internet (ExternalRef removed) and patients could use the official division of graduate student affairs and research promotion department website to opt out of the study if they did not want their data used for research purposes.