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. Science: Indonesian Journal of Science, [S. l.], v. 3, n. 2, p. 69–78, 2026. DOI: 10.31004/sciencejurnalkesehatanmasyarakatdanteknologiterapan.v3i2.408. Disponível em: https://science.web.id/index.php/science/article/view/408.. Acesso em: 10 oct. 2026.