Tanaka, Nobuyuki http://orcid.org/0000-0002-6608-285X
Kunihiro, Yoshie
Kawano, Reo
Yujiri, Toshiaki
Ueda, Kazuhiro
Gondo, Toshikazu
Kobayashi, Taiga
Matsumoto, Tsuneo
Article History
Received: 16 May 2022
Accepted: 14 August 2022
First Online: 9 September 2022
Declarations
: We declare that this work has not been published previously, that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English or in any other language, including electronically without the written consent of the copyright-holder
: The authors declare that they have no conflict of interest. They also declare that there has been no significant financial support for this work that could have influenced its outcome.
: The institutional review board of the institution approved this study. The requirement for informed consent was waived due to the retrospective design.The authors declare that they preserve ethical standards as laid down in the 1964 Declaration of Helsinki.