Nakajo, Masatoyo
Jinguji, Megumi
Tani, Atsushi
Hirahara, Daisuke
Nagano, Hiroaki
Takumi, Koji
Yoshiura, Takashi
Article History
Received: 15 October 2020
Revised: 21 January 2021
Accepted: 9 February 2021
First Online: 6 March 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict interest.
: 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.
: Informed consent was waived by the institutional review board for this retrospective study.
: This article does not contain any studies with animals performed by any of the authors.