title: The autistic syndrome.
mesh_terms: D001321:Autistic Disorder / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D003192:Compulsive Behavior; D003937:Diagnosis, Differential; D004454:Echolalia / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007360:Intelligence; D010661:Phenylketonurias / Q000175:diagnosis