Maternal Knowledge of Umbilical Cord Care and Its Association With Cord Separation Duration: A Cross-Sectional Study in Simalungun Regency. Jurnal Kebidanan Manna, [S. l.], v. 5, n. 1, p. 143–156, 2026. DOI: 10.58222/jkm.v5i1.1963. Disponível em: https://journal.bengkuluinstitute.com/index.php/JKM/article/view/1963. Acesso em: 2 aug. 2026.