MR Imaging Findings After Stereotactic Radiosurgery Using the Gamma Knife
AJR 176:1589-1595, Friedman,D.P.,et al, 2001
Stereotactic Radiosurgical Pallidotomy and Thalamotomy with the Gamma Knife:MR Imaging Findings with Clinical Correlation-Preliminary Experience
Radiology 212:143-150, Friedman,D.P.,et al, 1999
Gamma Knife Pallidotomy in Advanced Parkinson's Disease
Ann Neurol 39:535-538, Friedman,J.H.,et al, 1996