Surgery for Parkinson Disease
Arch Neurol 57:1118-1125, Lang,A.E., 2000
Electrical Stimulation of the Subthalamic Nucleus in Advanced Parkinson's Disease
NEJM 339:1105-1111, Limousin,P.,et al, 1998
Surgery for Parkinson's Disease
JNNP 62:2-8, Obeso,J.A.,et al, 1997