RT Journal Article SR Electronic T1 Magnetic resonance imaging in patients with progressive myelopathy following spinal surgery. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1016 OP 1017 DO 10.1136/jnnp.52.8.1016 VO 52 IS 8 A1 Adams, C B YR 1989 UL http://jnnp.bmj.com/content/52/8/1016.abstract AB