Kim, Ju Hee
Park, Sihyeong
Ha, Eun Kyo
Yon, Dong Keon
Lee, Seung Won
Koh, Hyun Yong
Han, Man Yong
Article History
Received: 11 November 2020
Accepted: 30 July 2021
First Online: 12 August 2021
Declarations
:
: The survey was approved by the IRB of the Korea Institute of Child Care and Education. Informed consent was obtained from all subjects or, if subjects are under 18, from a parent or a legal guardian.
: Not applicable
: The authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.