Pramipexole vs Levodopa as Initial Treatment for Parkinson Disease
JAMA 284:1931-1938,1971, Parkinson Study Group, 2000
Studies with Bromocriptine Part 2. Double-blind Comparison with Levodopa in Idiopathic Parkinsonism
Neurol 26:511, Kartzinel,R.,et al, 1976