1. University Hospitals Case Medical Center, Cleveland, Ohio.
2. University of Missouri-Kansas City, Children's Mercy Hospital, Kansas City, Missouri.
3. Children's Hospital Medical Center, Cincinnati, Ohio.
4. Bristol-Myers Squibb, Princeton, New Jersery.
5. Bristol-Myers Squibb, Plainsboro, New Jersey.
6. Otsuka Maryland Research Institute, Rockville, Maryland.
7. Otsuka Pharmaceutical Co. Ltd, Tokyo, Japan.
8. Otsuka Pharmaceutical Development and Commercialization Inc., Princeton, New Jersey.
9. Department of Pediatrics and Pharmacology, Case Western Reserve University School of Medicine, Cleveland, Ohio.