Choi, Eun-A
Nah, Geumkyung
Chang, Woo-Sung
Lee, So-Yeon
Suh, Dong In
Kim, Kyung Won
Shin, Youn Ho
Ahn, Kangmo
Hong, Soo-Jong
Kim, Young Youl
Lee, Hye-Ja
Article History
Received: 30 December 2022
Accepted: 24 June 2023
First Online: 6 July 2023
Declarations
:
: The study was conducted in accordance with the Declaration of Helsinki. Written informed consent was obtained from the parents of all infants. Ethical approval for this study was obtained from the Institutional Review Board (IRB) of Asan Medical Center (IRB no. 2008–0616 and 2015–1031), Samsung Medical Center (IRB no. 2009–02–021), Severance Hospital (IRB no. 4–2008 − 0588), CHA Medical Center (IRB no. 2010–010), Seoul National University Hospital (IRB no. H-1401-086-550), and Korea Disease Control and Prevention Agency (IRB no. 2020-03-06-C-A).
: Not Applicable.
: None.
: The authors declare no competing interests.