Norikoshi, Kensuke http://orcid.org/0000-0002-4910-7664
Kobayashi, Toshio
Tabuchi, Keiji
Oriyama, Sanae
Funding for this research was provided by:
Hiroshima International University Fund
Article History
Received: 29 April 2020
Accepted: 29 July 2020
First Online: 12 August 2020
Ethics approval and consent to participate
: This study protocol was approved by the Research Ethics Board of the Hiroshima International University (Hiroshima, Japan; Protocol No. 17-016). All participants provided written informed consent about the protection of anonymity and confidentiality for the surveys.
: Not applicable.
: The authors declare that they have no competing interests.