1. Division of Pediatric Gastroenterology; Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center; Cincinnati OH
2. Department of Pediatrics; University of Cincinnati College of Medicine; Cincinnati OH
3. Division of Pathology and Laboratory Medicine; Cincinnati Children's Hospital Medical Center; Cincinnati OH
4. Division of Biomedical Informatics; Cincinnati Children's Hospital Medical Center; Cincinnati OH
5. Consultant to Shire plc; San Diego CA