Matsui, Kazuaki https://orcid.org/0000-0002-6098-5257
Sakuramoto, Shinichi
Sugita, Hirofumi
Nishibeppu, Keiji
Ebara, Gen
Fujita, Shohei
Fujihata, Shiro
Oya, Shuichiro
Miyawaki, Yutaka
Sato, Hiroshi
Yamaguchi, Shigeki
Yamashita, Keishi
Article History
Received: 3 December 2020
Accepted: 12 May 2021
First Online: 21 May 2021
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was approved by the Independent Ethics Committee of Saitama Medical University International Medical Center (19-226).
: Written informed consent was waived because of the retrospective design.
: Not applicable
: The authors declare no competing interests.