Electrophysiological differences between upper and lower limb movements in the human subthalamic nucleus מאת Tinkhauser, G, Shah, A, Fischer, P, Peterman, K, Debove, I, Nygyuen, K, Nowacki, A, Torrecillos, F, Khawaldeh, S, Tan, H, Pogosyan, A, Schuepbach, M, Pollo, C, Brown, P