Mendoza-Rojas, V., Díaz-Martínez, L., Mantilla-Mora, G., Contreras-García, G., Mora-Bautista, V., Martínez-Paredes, J., Calderón-Rojas, A., Gómez-Tarazona, C. and Pinzón-Mantilla, K. 2017. 17-hydroxiprogesterone values in healthy preterm infants. Colombia Médica. 48, 4 (Dec. 2017), 161-166. DOI:https://doi.org/10.25100/cm.v48i4.2893.