title: Motion studies of the lumbar spine: a preliminary report.
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging / Q000503:physiopathology; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000502:physiology*; D008875:Middle Aged; D009068:Movement; D009192:Myelography