Received: 27 May 2021
Accepted: 13 September 2021
First Online: 23 September 2021
: This study was conducted in accordance with the principles outlined in the Declaration of Helsinki and was approved by the Ethics Committee of the Miyagi Psychiatric Center (MPC-20190320). After the study procedures were explained to the participants, written informed consent was obtained from them in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare no competing interests.