Park, Eujin
Lee, Hye Jin
Choi, Hyun Jin
Ahn, Yo Han
Han, Kyoung Hee
Kim, Seong Heon
Cho, Heeyeon
Shin, Jae Il
Lee, Joo Hoon
Park, Young Seo
Ha, Il-Soo
Cho, Min Hyun
Kang, Hee Gyung http://orcid.org/0000-0001-8323-5320
Funding for this research was provided by:
Korea Centers for Disease Control and Prevention (2011E3300300, 2012E3301100, 2013E3301600, 2013E3301601, 2013E3301602, 2016E3300200, 2016E3300201, 2016E3300202, 2019E320100, 2019E320101, and 2019E320102)
Article History
Received: 8 September 2020
Revised: 6 March 2021
Accepted: 12 March 2021
First Online: 30 March 2021
Declarations
:
: This study was approved by the institutional review boards of the participating centers, namely Jeju National University Hospital (Jeju, South Korea), Pusan National University Children’s Hospital (Yangsan, South Korea), Severance Children’s Hospital (Seoul, South Korea), Kyungpook National University Children’s Hospital (Daegu, South Korea), Seoul National University Children’s Hospital (Seoul, South Korea), Samsung Medical Center (Seoul, South Korea), Asan Medical Center (Seoul, South Korea), and Hallym University Kangnam Sacred Heart Hospital (Seoul, South Korea).
: Informed consent was obtained from the parents of all individual participants according to local requirements.
: The authors declare no competing interests.