Progression of lumbosacral spondylolisthesis.
D000293:Adolescent; D000328:Adult; D001848:Bone Diseases, Developmental; D005500:Follow-Up Studies; D006801:Humans; D008161:Lumbosacral Region; D011859:Radiography; D013131:Spine / Q000473:pathology; D013168:Spondylolisthesis / Q000000981:diagnostic imaging* / Q000473:pathology