Changes in cognition and health-related quality of life with unilateral thalamotomy for Parkinsonian tremor. - Nijhawan, SR; Banks, S; Aziz, T; Panourias, I; Gregory, R; Yianni, J; Parkin, S; Joint, C; Scott, R (Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia, 2009)