Individual Dopaminergic Neurons Show Raised Iron Levels in Parkinson Disease
Neurol 68:1820-1825, Oakley,A.E.,et al, 2007
Levodopa and the Progression of Parkinson's Disease
NEJM 351:2498-2508, The Parkinson Study Group, 2004
Dopamine Transporter Brain Imaging to Assess the Effects of Pramipexole vs Levodopa on Parkinson Disease Progression
JAMA 287:1653-1661, Parkinson Study Group, 2002