Lubis, Masrul
Mardia, Andri Iskandar
Article History
Received: 28 December 2025
Accepted: 13 March 2026
First Online: 19 March 2026
Declarations
:
: The authors declare no competing interests.
: Not applicable.
: Written informed consent for umbilical cord donation was obtained from all participating mothers prior to delivery.
: All authors have reviewed and approved the final version of the manuscript and consent to its publication.
: Not applicable.
: Not applicable.