Received: 5 July 2021
Accepted: 10 May 2022
First Online: 19 May 2022
: The present study was conducted in accordance with the amended Declaration of Helsinki. The ethics committee of Nagano Prefectural Shinshu Medical Center approved our study (Reference number. No. R2-4). All patients gave a written, informed consent.
: Not applicable.
: The authors declare that they have no conflict of interest.