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	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

We read with interest the findings and comments of Soukup et al¹ in the August issue of the ARCHIVES.

First, contrary to the comment by Soukup and coworkers that our group did not observe improvement in motor coordination speed (as measured by the Purdue Pegboard [PP] Test), we did find improvements at 3 months postoperatively for the PP-preferred hand (P<.007, n=25), PP hand contralateral to posteroventral pallidotomy (PVP) lesion (P<.009, n=25), and trends toward significance for PP hand ipsilateral to PVP lesion (P<.06, n=25). Both significant findings also had strong effect sizes (Cohen d=0.52 for PP-preferred hand and Cohen d=0.37 for PP contralateral). Similar to the testing by Soukup et al, our neuropsychological testing was completed during the patients' optimal "on" state.

Therefore, despite a significant difference between our mean (±SD) years' duration of Parkinson disease (12.8±5) and that of Soukup and . . . [Full Text of this Article]

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