Is discography a useful diagnostic procedure?
D002574:Cervical Vertebrae / Q000000981:diagnostic imaging; D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D009192:Myelography; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging