Sueoka, Satoshi http://orcid.org/0000-0002-6167-1372
Sasada, Shinsuke
Masumoto, Norio
Emi, Akiko
Kadoya, Takayuki
Okada, Morihito
Article History
Received: 31 July 2020
Accepted: 31 December 2020
First Online: 23 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The Institutional Review Board approved this study. All procedures performed involving human participants were in accordance with the ethical standards of the institutional research committee and the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this retrospective study, the need for formal consent was waived.