Tsutsumi, Satoshi
Ono, Hideo
Ishii, Hisato
Article History
Received: 9 March 2020
Accepted: 31 March 2020
First Online: 8 April 2020
Compliance with ethical standards
:
: The authors have no conflicts of interest to declare regarding the materials or methods used in this study or the findings presented in this paper.
: All procedures performed in the 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 obtained from all participants included in the study.