Sustained Extracellular Signal-Regulated Kinase 1/2 Phosphorylation in Neonate 6-Hydroxydopamine-Lesioned Rats after Repeated D<sub>1</sub>-Dopamine Receptor Agonist Administration: Implications for NMDA Receptor InvolvementSophia T. Papadeas, George R. Breese|Journal of Neuroscience|2004Cited by 44