1. Knowledge and Evaluation Research Unit; Division of Endocrinology, Diabetes, Metabolism and Nutrition; Department of Medicine; Mayo Clinic; Rochester MN USA
2. Department of Nutrition, Diabetes and Metabolism; Pontifical Catholic University of Chile; Santiago Chile
3. Division of Endocrinology; Department of Internal Medicine; University Hospital ‘Dr. Jose E. Gonzalez’; Autonomous University of Nuevo Leon; Monterrey Mexico
4. Mayo Graduate School; Mayo Clinic; Rochester MN USA