Incidental Findings on Brain Magnetic Resonance Imaging From 1000 Asymptomatic Volunteers
JAMA 282:36-39, Katzman,G.L.,et al, 1999
Vascular Neoplasms and Malformations, Ischemia, and Hemorrhage Affecting the Spinal Cord:MR Imaging Findings
AJR 162:685-692, Friedman,D.P.,et al, 1994