Received: 17 January 2022
Accepted: 8 April 2022
First Online: 28 May 2022
: Informed consent was obtained from all subjects or their legal guardian in the Ethics approval and Consent to participate. This study was approved by the Ethical Committee for Epidemiology of Hiroshima University (E-3791). This study followed the recommendations of the Checklist for Reporting Results of Internet E-Surveys [CitationRef removed], was conducted in compliance with the guidelines of the Declaration of Helsinki and its amendments.
: Not applicable.
: The authors declare that they have no competing interests.