Received: 28 December 2020
Accepted: 20 January 2021
First Online: 29 January 2021
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committees and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The Ethics Committee of Toho University Ohashi Medical Center approved this study (H20074).
: Not applicable.
: The authors declare that they have no competing interests. This author, their immediate family, and any research foundation with which they are affiliated did not receive any financial payments or other benefits from any commercial entity related to the subject of this article.