De Bernal, M., A. Collazos, R. Bonilla, and E. Tascón. “Determination of the Prevalence of Hemoglobin S, C, D, and G in Neonates from Buenaventura, Colombia”. Colombia Médica, Vol. 41, no. 2, 1, pp. 141-7, https://colombiamedica.univalle.edu.co/colombiamedica311/index.php/comedica/article/view/695.