Kim, Ji-A
Lee, Yu-Mi
Yi, Keun-Ik
Kim, Sung-Dong
Mun, Sue-Jean
Cho, Kyu-Sup http://orcid.org/0000-0002-4381-6996
Article History
Received: 24 July 2019
Accepted: 13 September 2019
First Online: 21 September 2019
Compliance with ethical standards
:
: The authors have no funding, financial relationships, or conflicts of interest to disclose.
: This study protocol was approved by the Institutional Review Board of Pusan National University Hospital (PNUHIRB 1804-013-066).
: Written informed consent was not obtained from each parent prior to the patient’s participation in the study because of retrospective chart reviews.