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FIGURE 1. Plots of individual clinical scores for motor UPDRS, H&Y, and S&E for preoperative (T0) and postoperative on-stimulation conditions at 5 mo (T1) and 42 mo (T2). Clinical scores were assessed in unmedicated patients. Reduction in motor UPDRS and H&Y scores and increase in S&E score indicate improvement in motor function, global stage disease, and performance of activities of daily living, respectively. Differences between mean scores for UPDRS, H&Y, and S&E at T0 and T1 and at T0 and T2 were significant. No significant differences were present between mean scores at T1 and T2.
