1. Division of Endocrinology, Diabetes, Metabolism and Nutrition; Mayo Clinic; Rochester Minnesota USA
2. Division of Breast, Endocrine, Metabolic, and GI surgery; Mayo Clinic; Rochester Minnesota USA
3. Division of Gastroenterology and Hepatology; Mayo Clinic; Rochester Minnesota USA
4. Division of General Internal Medicine; Mayo Clinic; Rochester Minnesota USA
5. Division of Gastroenterology, Hepatology, and Nutrition; University of Louisville; Louisville Kentucky USA