S, Cho Y, Ahn M, Jong S. Sohn Y. Kim H. 2002. mRNA expression of cytokines and chemokines in herniated lumbar intervenebral discs. Spine 27:911-7. Aoki Y, Ydevik B. Kikuchi S. Olmarker K.2002. Local application of disc-related cytokines in spinal nerve roots. Spine 27:1614-7. Benoist M. 2002. The nat