Identification of risk factors associated with umbilical hernia in under 5 children: A hospital based study. Community Based Medical Journal, [S. l.], v. 7, n. 2, p. 4–8, 2018. DOI: 10.3329/cbmj.v7i2.55449. Disponível em: https://banglajol.info/index.php/CBMJ/article/view/55449. Acesso em: 3 jul. 2026.