1. Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada;
2. Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts;
3. Department of Psychology, University of Connecticut, Storrs, Connecticut;
4. Department of Neurosciences, University of California San Diego, La Jolla, California;
5. Harvard Medical School and Massachusetts General Hospital for Children, Boston, Massachusetts;
6. Integrated Center for Child Development, Newton, Massachusetts;
7. A.J. Drexel Autism Institute, Drexel University, Philadelphia, Pennsylvania;
8. Department of Clinical Sciences, Florida State University College of Medicine, Tallahassee, Florida;
9. Division of Developmental and Behavioral Pediatrics, University of Massachusetts Memorial Children’s Medical Center, Worcester, Massachusetts;
10. Graduate School of Education & Information Studies, University of California Los Angeles, Los Angeles, California;
11. Departments of Psychology and
12. Department of Psychology, Hebrew University of Jerusalem Mount Scopus, Jerusalem, Israel;
13. Speech and Hearing Sciences, University of Washington, Seattle, Washington;
14. Department of Pediatrics, University of California Davis MIND Institute, Sacramento, California;
15. Yale Child Study Center, New Haven, Connecticut;
16. Genomic Medicine Institute, Cleveland Clinic, Cleveland, Ohio;
17. Department of Psychology, University of Massachusetts, Boston, Massachusetts;
18. Center for Autism and Related Disorders, Tarzana, California;
19. Department of Occupational Therapy, Thomas Jefferson University, Philadelphia, Pennsylvania;
20. USC Mrs T.H. Chan Division of Occupational Science and Occupational Therapy, Los Angeles, California; and
21. Behavioral Development & Educational Services, New Bedford, Massachusetts