Atlantooccipital Dislocation:MR Demonstration of Cord Damage
J Comput Assist Tomogr 15:174-178, Goldberg,A.L.,et al, 1991
Chronic Cervical Cord Compression:Clinical Significance of Increased Signal Intensity on MR Images
Radiology 173:219-224, Takahashi,M.,et al, 1989