Labrador-Hernández, M., Suárez-Graterol, O., Romero-Contreras, U., Rumenoff, L., Rodríguez-Bonfante, C. y Bonfante-Cabarcas, R. 2009. The cholinergic system in cyclophosphamide induced-Chagas dilated myocardiopathy in Trypanosoma cruzi infected rats: an electrocardiographic study. Investigación Clínica. 49, 2 (jul. 2009).