Nobuhara, Hiroshi http://orcid.org/0000-0001-9828-0917
Matsugu, Yasuhiro http://orcid.org/0000-0001-9021-3955
Tanaka, Junko
Akita, Tomoyuki
Ito, Keiko http://orcid.org/0000-0001-7925-7228
Article History
Received: 19 May 2021
Accepted: 30 December 2021
First Online: 5 January 2022
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. The study was approved by the Institutional Review Board of Hiroshima Prefectural Hospital (Date April 22, 2019. No. 201712–13).
: The requirement for written informed consent was waived owing to the retrospective nature of the study.
: Not applicable.
: The authors declare no competing interests.