de Arango, M., D. A. Rodríguez, and N. E. Prada. “Frecuency of Cryptosporidium Spp in childres’s Stool of One Month to Thirteen Years Old in a Local Colombian Hospital”. Colombia Medica, vol. 37, no. 2, Nov. 2006, pp. 121-5, doi:10.25100/cm.v37i2.422.