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. 2019 Oct 4;11:266. doi: 10.3389/fnagi.2019.00266

Figure 1.

Figure 1

ROC curves for symptomatic and asymptomatic hand PPT performance of PD-L and PD-R patients vs. normal controls. The symptomatic hand (dotted line) and asymptomatic hand (continuous line) pegboard dexterity for discriminating patients and normal controls. ROC, receiver operating characteristics; PPT, Purdue Pegboard Test; PD-L, left-onset Parkinson’s disease; PD-R, right-onset Parkinson’s disease; AUC, area under the ROC curve.