Breastfeeding and its effect on the severity of acute respiratory illnesses in children under 5 years of age: A single-center observational study. Actas Médicas (Ecuador), [S. l.], v. 34, n. 2, p. 125–131, 2024. DOI: 10.61284/. Disponível em: https://actasmedicas.ec/index.php/am/article/view/212.. Acesso em: 9 apr. 2026.