N-Methyl-D-Aspartate Antagonists in the Treatment of Parkinson's DiseaseArch Neurol 48:977-981, Greenamyre,J.T.&O'Brien,C.F., 1991
Bromocriptine & Domperidone in the Treatment of Parkinson DiseaseNeurol 31:662-667, Quinn,N.,et al, 1981