Text and Data Mining valid from 2020-02-18
Received: 17 November 2019
Accepted: 11 February 2020
First Online: 18 February 2020
Ethics approval and consent to participate
: The study protocol was approved by the institutional Review Board of Seishinkai Fujisawa Hospital, and the study was performed in accordance with the Declaration of Helsinki. All participants provided written informed consent after receiving detailed information regarding the study. All participants have been deemed capable of ethically and medically consenting for their participation in the research by psychiatric experts.
: Not applicable.
: The authors declare that they have no competing interests.