Received: 6 September 2021
Accepted: 11 March 2022
First Online: 22 March 2022
: All procedures performed in the 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 has obtained IRB approval from Gunma University Hospital.
: Not applicable.
: The authors declare that they have no competing interests.