1. Diagnostic puncture of intervertebral disks in sciatica;Lindblom;Acta Orthop Scand,1948
2. An attempt to diagnose the level of a disc lesion clinically by disc puncture;Hirsch,1948
3. Discography;Anderson;Curr Rev Pain,2000
4. Clinical Anatomy of the Lumbar Spine and Sacrum;Bogduk,1997
5. Lumbar discography;Guilford;Semin Interv Radiol,1993