Acute Leukoencephalopathies:Differential Diagnosis and Investigation
The Neurologist 4:148-166, Weinshenker,B.G.,et al, 1998
MR Imaging of the Spinal Cord:Current Status and Futue Advances
AJR 159:149-159, Sze,G., 1992
Medical Implications of Computed Tomography ("Cat scanning")
NEJM 298:255, Abrams,H.L.,et al, 1978