Overview of Knowledge of Mothers Who Have New Babies Born 0 -7 Days About Maintenance Umbilical Cord Surgery at Partner Clinic St. Elisabeth College of Health Sciences Medan in 2025. JGRP [Internet]. 2026 Jun. 25 [cited 2026 Jun. 27];2(2):63-72. Available from: https://journal.padangtekno.com/index.php/jgrp/article/view/69