Kim, Sung A.
Bae, Sung Man
Article History
Accepted: 6 January 2023
First Online: 16 January 2023
Declarations
:
: The author(s) declared no potential conflicts of interest with respect to the research, authorship, or publication of this article.
: Ethical approval is not required because of using public data.
: This study used public data that can use freely, so it is not necessary to obtain consent.