1. Division of Gastroenterology, University of Utah School of Medicine, Salt Lake City, Utah
2. Department of Pharmacology, University of Utah School of Medicine, Salt Lake City, Utah
3. Division of Endocrinology, Tulane University, New Orleans, Louisiana
4. Department of Pharmacy, University Hospitals and Clinics, Salt Lake City, Utah
5. Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana