Kim, Seung Hyun http://orcid.org/0000-0002-5740-5688
Oh, Yoon Ju http://orcid.org/0009-0005-7775-338X
Son, Joonhyuk http://orcid.org/0000-0002-2102-5413
Jung, Donggoo http://orcid.org/0000-0002-0638-8793
Kim, Daehyun http://orcid.org/0009-0005-3299-1181
Ryu, Soo Rack
Na, Jae Yoon http://orcid.org/0000-0002-0465-7902
Hwang, Jae Kyoon http://orcid.org/0000-0003-0312-567X
Kim, Tae Hyun http://orcid.org/0000-0002-7995-3984
Park, Hyun-Kyung http://orcid.org/0000-0001-5956-9208
Funding for this research was provided by:
National Research Foundation of Korea (RS-2023-00219983, RS-2023-00252422)
Hanyang University (HY-202300000002994)
Article History
Received: 30 November 2023
Revised: 20 February 2024
Accepted: 2 March 2024
First Online: 30 March 2024
Declarations
:
: The KNN registry was approved by the institutional review board of each participating hospital, and informed consent was obtained from the parents of each infant upon enrollment in the NICUs participating in the KNN. All the participants signed an informed consent form. This study was performed in line with the principles of the Declaration of Helsinki. This study was approved by the Institutional Review Board of the Hanyang University Medical Center (IRB No. 2022–02-012).
: The authors declare no competing interests.