Funding for this research was provided by:
the korea health technology r&d project through the korea health industry development institute (HI20C1130)
Received: 23 February 2021
Accepted: 11 August 2021
First Online: 7 September 2021
: This study was approved by the Institutional Review Board of Korea Institute for Health and Social Affairs (No. 2021–002). This data is publicly accessible and written informed consent is obtained from all the participants before participating in the survey. Respondents’ information was completely anonymized for use for research purposes and unidentified prior to analysis. The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2000.
: Not applicable.
: The authors declare that they have no competing interests.