Cuartas, D. E., Ariza, Y., Pachajoa, H. and Méndez, F. (2011) “Analysis of the spatial and temporal distribution of birth defects between 2004-2008 at a third-level hospital in Cali, Colombia*”, Colombia Medica, 42(1), pp. 9–16. doi: 10.25100/cm.v42i1.745.