Rakshi, J S A comparison of the progression of early Parkinson's disease in patients started on ropinirole or L-dopa: an 18F-dopa PET study. [electronic resource] - Journal of neural transmission (Vienna, Austria : 1996) Dec 2002 - 1433-43 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0300-9564 Standard No.: 10.1007/s00702-002-0753-0 doi Subjects--Topical Terms: AgedAntiparkinson Agents--administration & dosageDihydroxyphenylalanine--analogs & derivativesDisease ProgressionFluorine RadioisotopesFollow-Up StudiesHumansIndoles--administration & dosageLevodopa--administration & dosageMiddle AgedParkinson Disease--diagnostic imagingTomography, Emission-Computed