Shibuya, Masahiko
Sugihara, Eiji
Miyazaki, Koichi
Yamamoto, Masayoshi
Fujiwara, Keishi
Okuno, Yuji
Article History
Received: 28 May 2020
Accepted: 26 September 2020
First Online: 20 October 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study is retrospective study; formal consent is not required.
: Informed consent was obtained from all individual participants included in the study.
: Consent for publication was obtained for every individual person’s data included in the study.