Urrea Giraldo, F., and D. A. Rodriguez Sánchez. “Transformations Sociodemographic and Living Conditions in Two Indigenous and Black Populations in Northern Cauca in the Period Between 1993-2005”. Colombia Medica, vol. 43, no. 2, June 2012, pp. 126-32, doi:10.25100/cm.v43i2.1142.