Ko, Young Gun http://orcid.org/0000-0002-1277-9555
Funding for this research was provided by:
Sangmyung University (2020 Research Grant)
Article History
Received: 30 April 2020
Accepted: 19 September 2020
First Online: 10 October 2020
Compliance with ethical standards
:
: The author declares that he has no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.