Spondylolisthesis.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000002:abnormalities; D008297:Male; D011859:Radiography; D013168:Spondylolisthesis / Q000000981:diagnostic imaging / Q000628:therapy