Acquired spondylolysis in child and young adult. Report of two cases.
D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae; D008297:Male; D011859:Radiography; D016135:Spinal Dysraphism / Q000235:genetics; D013168:Spondylolisthesis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000235:genetics; D013312:Stress, Physiological / Q000150:complications