Levodopa Improves Spatial Contrast Sensitivity in Parkinson's Disease
Arch Neurol 50:721-724, Hutton,J.T.,et al, 1993
Contrast Agent Overdose Causing Brain Retention of Contrast, Seizures, and Parkinsonism
Neurol 43:836-838, May,E.F.,et al, 1993
Abnormalities in Color Vision and Contrast Sensitivity in Parkinson's Disease
Neurol 42:887-890, Price,M.J.,et al, 1992
Transplantation of Human Fetal Dopamine Cells for Parkinson's Disease
Arch Neurol 47:505-512, Freed,C.R.,et al, 1990