1. Institute of Child Development University of Minnesota Minneapolis Minnesota USA
2. Department of Psychiatry Washington University School of Medicine in St. Louis St Louis Missouri USA
3. Department of Educational Psychology University of Minnesota Minneapolis Minnesota USA
4. Department of Pediatrics University of Minnesota Minneapolis Minnesota USA
5. School of Behavioral and Brain Sciences University of Texas at Dallas Richardson Texas USA
6. Department of Psychiatry University of North Carolina at Chapel Hill Chapel Hill North Carolina USA
7. Departments of Radiology and Bioengineering University of Washington Seattle Washington USA
8. Department of Speech and Hearing Sciences University of Washington Seattle Washington USA
9. Department of Pediatrics University of Pennsylvania Philadelphia Pennsylvania USA