1. Department of Epidemiology, University of North Carolina at Chapel Hill
2. Department of Pediatrics, Birth Defects Research Section, University of Arkansas for Medical Sciences and Arkansas Children's Hospital Research Institute, Little Rock
3. College of Pharmacy, Department of Pharmacy Practice, University of Arkansas for Medical Sciences
4. Division of Biomedical Informatics, University of Arkansas for Medical Sciences
5. Department of Pediatrics, Section of Clinical Pharmacology & Toxicology, University of Arkansas for Medical Sciences and Arkansas Children's Hospital Research Institute
6. College of Pharmacy, Division of Pharmaceutical Evaluation and Policy, University of Arkansas for Medical Sciences