title: A report of one family with four autistic siblings and four families with three autistic siblings.
mesh_terms: D000293:Adolescent; D000328:Adult; D001321:Autistic Disorder / Q000175:diagnosis / Q000235:genetics*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D012306:Risk