Funding for this research was provided by:
Japan Society for the Promotion of Science (JP 19KT0021, JP 19KT0021, JP 19KT0021)
Received: 29 April 2021
Accepted: 5 October 2021
First Online: 19 October 2021
: The study was conducted in accordance with the Declaration of Helsinki and the ethical guidelines for medical and health research involving human subjects in Japan. This study was approved by the Ethics Review Board of Kansai University (review number # 138). Only those who accepted an online informed consent statement participated the questionnaire survey.
: Not applicable.
: The authors declare that they have no competing interests.