Gutiérrez Reyes, E., Castañeda Perozo, D., Papale Centofanti, J., Nello Pérez, C., Pascuzzo Lima, C., Moreno Yanez, J. y Bonfante Cabarcas, R. 2009. Supersensitivity of the Cholinergic Muscarinic System in the Rat”™s Brain is Induced by High Concentrations of Cu+2. Investigación Clínica. 43, 2 (nov. 2009).