1. Department of Food Science and Human Nutrition, Human Metabolic Unit, Center for Designing Foods to Improve Nutrition, Iowa State University, Ames, IA 50011
2. Department of Statistics, Iowa State University, Ames, IA 50011
3. Department of Pathology, Division of Hospital Laboratories, University of Illinois at Chicago, Chicago, IL 60612
4. Iowa Heart Institute, Des Moines, IA 50314