[Spondylolysis: familial occurrence and its genetic implications].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D010375:Pedigree; D011859:Radiography; D013168:Spondylolisthesis / Q000235:genetics*