Post-Traumatic Syringomyelia (Cystic Myelopathy) :A Prospective Study of 449 People with Spinal Cord Injury
JNNP 60:61-67, Schurch,B.,et al, 1996
Surgical Treatment of Cervical Spondylotic Myelopathy:Time for a Controlled Trial
Neurol 42:5-13, Rowland,L.P., 1992