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Authors
Cho, Seong Hee
Chung, Chin Youb
Park, Moon Seok
Lee, Kyoung Min
Sung, Ki Hyuk https://orcid.org/0000-0002-5007-2403
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Article History
Received: 7 August 2019
Accepted: 24 April 2020
First Online: 1 May 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board of Seoul National University Bundang Hospital (IRB number: B-1803/456–303). Informed consent was obtained from all patients’ parent or their guardians.
: Not applicable.
: The authors declare that they have no competing interests.
