1. Oak Ridge Institute for Science and Education Atlanta Georgia USA
2. Centers for Disease Control and Prevention (CDC), National Center on Birth Defects and Developmental Disabilities Atlanta Georgia USA
3. Carter Consulting, Inc. Atlanta Georgia USA
4. New York State Department of Health Albany New York USA
5. Department of Epidemiology The University of Iowa Iowa City Iowa USA
6. Department of Pediatrics University of Arizona Tucson Arizona USA
7. Colorado Department of Public Health and Environment (CDPHE) Denver Colorado USA
8. Bristol Meyers Squibb Lawrenceville New Jersey USA