Funding for this research was provided by:
toyota foundation (D19-ST-0012)
japan society for the promotion of science (21K17615)
Received: 27 June 2021
Accepted: 18 November 2021
First Online: 11 December 2021
: This study was performed in accordance with the standards of ethics outlined in the Declaration of Helsinki and approved by the Research Ethics Committee at the National Center of Neurology and Psychiatry, Japan (NCNP) (approval number: A2020-058).
: The participants were informed about the survey process, including the purpose of the study, data collection procedures, and the consequences of participating or not participating via the cover page of the questionnaire. Each participant gave their informed consent to use their response for research purposes.
: The authors declare that they have no competing interests.