title: Introduction.
authors.affiliation: Autism Research Program, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA.|Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
authors.forename: Richard E
authors.initials: RE
authors.lastname: Frye
authors.affiliation: Autism Research Program, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA.|Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
authors.forename: John
authors.initials: J
authors.lastname: Slattery