Vascular Neoplasms and Malformations, Ischemia, and Hemorrhage Affecting the Spinal Cord:MR Imaging Findings
AJR 162:685-692, Friedman,D.P.,et al, 1994
Diagnostic & Prognostic Implications of Computed Tomography of Head Trauma
J Comput Assist Tomogr 2:323-331, Tsai,F.Y.,et al, 1978