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