Kim, Seh Hyun http://orcid.org/0000-0001-8686-1909
Ahn, Yo Han http://orcid.org/0000-0002-8185-4408
Shin, Jeongmin http://orcid.org/0000-0002-0356-4747
Jung, Young Hwa http://orcid.org/0000-0002-4159-586X
Kim, Ji Young http://orcid.org/0000-0003-1466-2112
Choi, Chang Won http://orcid.org/0000-0003-1911-0253
Article History
Received: 31 March 2020
Revised: 19 July 2020
Accepted: 31 July 2020
First Online: 1 September 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. The study was approved by the Institutional Review Board of the Seoul National University Bundang Hospital (IRB No. B-1912/580-701).
: Informed consent to participate in the study was obtained from parents of the participants.
: Parents of patients signed informed consent regarding publication of the data.
: Not applicable