title: Debate and argument. Concordance for the syndrome of autism.
authors.forename: E R
authors.initials: ER
authors.lastname: Ritvo
authors.forename: R
authors.initials: R
authors.lastname: Ritvo
authors.forename: B J
authors.initials: BJ
authors.lastname: Freeman
mesh_terms: D001321:Autistic Disorder / Q000235:genetics*; D002648:Child; D004200:Diseases in Twins / Q000235:genetics*; D006801:Humans; D008957:Models, Genetic; D014429:Twins, Dizygotic / Q000235:genetics; D014430:Twins, Monozygotic / Q000235:genetics