title: Special issue on autism spectrum disorders. Introduction.
authors.affiliation: From the *University of Massachusetts Health Care, University of Massachusetts Medical School. Email: Jean.Frazier@umassmed.edu; †Massachusetts General Hospital, Harvard Medical School. Email: cmcdougle@partners.org.
authors.forename: Jean A
authors.initials: JA
authors.lastname: Frazier
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: McDougle
mesh_terms: D002659:Child Development Disorders, Pervasive / Q000188:drug therapy / Q000453:epidemiology / Q000235:genetics / Q000503:physiopathology; D006801:Humans