Eun, Yong http://orcid.org/0000-0001-7222-8328
Kim, Ji Hyun http://orcid.org/0000-0001-8477-0157
Lim, Seon Hee http://orcid.org/0000-0001-8327-7002
Ahn, Yo Han http://orcid.org/0000-0002-8185-4408
Kang, Hee Gyung http://orcid.org/0000-0001-8323-5320
Ha, Il-Soo http://orcid.org/0000-0001-5428-6209
Article History
Received: 9 July 2021
Accepted: 12 July 2021
First Online: 2 November 2021
Declarations
:
: 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 Hospital (IRB No. 2007–081–1141).
: 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.
: The authors declare no competing interests.