Olmarker K, Strömberg J, Blomquist J, Zachrisson P, Nannmark U, Nordborg C, and Rydevik B. Chondroitinase ABC (pharmaceutical grade) for chemonucleolysis. Functional and structural evaluation after local application on intraspinal nerve structures and blood vessels. Spine. 1996;21(17):1952–1956.

Olmarker K, Blomquist J, Strömberg J, Nannmark U, Thomsen P, Rydevik B. Inflammatogenic properties of nucleus pulposus. Spine. 1995;20(6):665–669.