1. Centers for Disease Control and Prevention National Center on Birth Defects and Developmental Disabilities Atlanta Georgia USA
2. Department of Psychology Ohio University Athens Ohio USA
3. Oak Ridge Institute for Science and Education Oak Ridge Tennessee USA
4. Rollins School of Public Health Emory University Atlanta Georgia USA
5. Department of Pediatrics University of Colorado Anschutz Medical Campus Aurora Colorado USA
6. Department of Psychology University of South Carolina Columbia South Carolina USA
7. Department of Psychiatry University of Florida College of Medicine Jacksonville Florida USA