L. A. OLAYA-MÁSMELA, P. CHACÓN DE ULLOA, and A. PAYÁN, “Ants (Hymenoptera: Formicidae) in hospital centers of Valle del Cauca as vectors of nosocomial pathogens”, Rev. Colomb. Entomol., vol. 31, no. 2, pp. 183–187, Jul. 2005.