Lumbar discography: redefining its role with intradiscal therapy.
D002917:Chymopapain / Q000627:therapeutic use; D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging* / Q000188:drug therapy; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D011859:Radiography
D002917:Chymopapain