Oh, Moon-Yeon https://orcid.org/0000-0003-1444-6495
Lee, Jae-Ho https://orcid.org/0000-0003-2619-1231
Article History
Received: 31 August 2025
Accepted: 13 April 2026
First Online: 17 April 2026
Declarations
:
: This study was conducted in accordance with the principles of the Declaration of Helsinki. The Korean Neonatal Network (KNN) registry has been approved by the Institutional Review Board (IRB) of each participating hospital, and informed consent was obtained from the parent(s) of all infants prior to enrollment. The study procedures adhered to the IRB-approved protocol and relevant guidelines. The protocol was reviewed and approved by the Institutional Review Board of Seoul St. Mary’s Hospital, The Catholic University of Korea (approval number: KC13ONMI0228).
: Not applicable.
: The authors declare no competing interests.