Low back pain.
D000368:Aged; D001416:Back Pain / Q000175:diagnosis / Q000628:therapy; D002420:Cauda Equina; D006801:Humans; D007403:Intervertebral Disc / Q000473:pathology; D007405:Intervertebral Disc Displacement / Q000473:pathology; D008159:Lumbar Vertebrae; D008875:Middle Aged; D013122:Spinal Diseases / Q000473:pathology; D013577:Syndrome