in 144 patients receiving prolonged treatment with levodopa for parkinson 's disease , an attempt was made to establish possible correlations between the incidence of levodopa-induced dyskinesias and the age of the patient at the onset of the disease , the clinical form of the disease , the duration of symptoms before initiation of the levodopa therapy , the duration of the levodopa therapy and the influence of the concomitant treatment .
C0030567
parkinson 's
C0023570
levodopa