Familial occurrence of the Williams syndrome.
D000293:Adolescent; D018376:Cardiovascular Abnormalities; D002675:Child, Preschool; D005260:Female; D006130:Growth Disorders / Q000235:genetics*; D006801:Humans; D006934:Hypercalcemia / Q000235:genetics; D008607:Intellectual Disability / Q000235:genetics*; D008297:Male; D008831:Microcephaly / Q000235:genetics*; D010375:Pedigree; D013577:Syndrome