title: Infantile autism in monozygotic twins.
mesh_terms: D001321:Autistic Disorder / Q000209:etiology / Q000235:genetics*; D001925:Brain Damage, Chronic / Q000150:complications; D002675:Child, Preschool; D004200:Diseases in Twins; D006801:Humans; D008297:Male; D014430:Twins, Monozygotic