Hayata, Keiji
Ojima, Toshiyasu
Nakamura, Masaki
Kitadani, Junya
Takeuchi, Akihiro
Yamaue, Hiroki
Article History
Received: 3 March 2021
Accepted: 10 May 2021
First Online: 20 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.
: The present retrospective study was approved by the Institutional Review Board of the Wakayama Medical University Hospital, with a waiver of the written informed consent from all patients concerned.
: The authors declare no competing interests.