1. National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD
2. Pennington Biomedical Research Center, Baton Rouge, LA
3. Institute for Clinical and Translational Research, University of Wisconsin, Madison, WI
4. Washington University School of Medicine, St Louis, MO
5. Nutritional Sciences, University of Wisconsin, Madison, WI
6. Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom