title: Cornelia de Lange syndrome: occurrence in twins.
mesh_terms: D000293:Adolescent; D002648:Child; D003635:De Lange Syndrome / Q000175:diagnosis / Q000209:etiology / Q000235:genetics*; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D006983:Hypertrichosis / Q000175:diagnosis / Q000209:etiology / Q000235:genetics; D007223:Infant