Moon, Sung-Jae
Lee, Kyeong-Hwa
Funding for this research was provided by:
Baegot-newcity specialized town Co.,Ltd ($ 23,169.60)
Article History
First Online: 12 May 2020
Compliance with ethical standards
: Informed consent has been obtained for research purpose and we have no conflict of interest.
: The authors declare that they have no conflict of interest.
: Informed consent has been obtained from all parents of individual participants included in the study for research purpose.
: All parents of individual participants gave their assent to publication.
: Not applicable.