The effects of bilateral Subthalamic Nucleus Deep Brain Stimulation (STN DBS) on cognition in Parkinson disease - Heo, Jae-Hyeok; Lee, Kyoung-Min; Paek, Sun Ha; Kim, Min-Jeong; Lee, Jee-Young; Kim, Ji-Young; Cho, Soo-Young; Lim, Yong Hoon; Kim, Mi-Ryoung; Jeong, Soo Yeon; Jeon, Beom S. (Journal of the Neurological Sciences, 2008)