1 AJ Drexel Autism Institute, Drexel University, 3020 Market Street, Suite 560, Philadelphia, PA, 19104, USA. drobins@drexel.edu.
2 Department of Psychology, Georgia State University, Atlanta, GA, USA.
3 Department of Psychology, University of Connecticut, Storrs, CT, USA.
4 AJ Drexel Autism Institute, Drexel University, 3020 Market Street, Suite 560, Philadelphia, PA, 19104, USA.
5 Department of Pediatrics, University of Connecticut School of Medicine, Farmington, CT, USA.
6 Division of Developmental-Rehabilitation Medicine, Connecticut Children's Medical Center, Hartford, CT, USA.
7 Office for Community Child Health and Help Me Grow National Center, Connecticut Children's Medical Center, Hartford, CT, USA.
8 Divisions of Developmental-Behavioral Pediatrics and Clinical Genetics, Department of Pediatrics, University of Connecticut School of Medicine, Farmington, CT, USA.
9 New England Newborn Screening Program, University of Massachussetts Medical School, Worcester, MA, USA.
10 Community Health and Prevention, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA.
11 Center for Children and Youth with Special Health Care Needs at St. Christopher's Hospital for Children, Philadelphia, PA, USA.
12 Olga Tennison Autism Research Centre, La Trobe University, Melbourne, Australia.