title: Autism, autistic spectrum and the need for better definition.
authors.forename: Bruce J
authors.initials: BJ
authors.lastname: Tonge
mesh_terms: D020817:Asperger Syndrome / Q000145:classification; D001321:Autistic Disorder / Q000145:classification; D002648:Child; D002659:Child Development Disorders, Pervasive / Q000145:classification*; D006801:Humans; D012720:Severity of Illness Index; D009626:Terminology as Topic