1. Division of Gastroenterology and Hepatology UNC Liver CenterUniversity of North Carolina at Chapel Hill Chapel Hill NC USA
2. Target RWE Durham NC USA
3. Atlanta Gastroenterology Associates Atlanta GA USA
4. Center for Human Nutrition and Atkins Center of Excellence in Obesity Medicine Washington University School of Medicine St. Louis MO USA
5. Division of Gastroenterology and Hepatology University of Michigan Ann Arbor MI USA
6. Division of Gastroenterology Department of Medicine University of California at San Diego CA USA
7. Division of Gastroenterology and Hepatology University of Pennsylvania Philadelphia PA USA
8. San Jose Gastroenterology San Jose CA USA
9. School of Medicine Emory University Children's Healthcare of Atlanta Atlanta GA USA
10. Gastro Florida Clearwater FL USA
11. Division of Endocrinology, Diabetes and Metabolism University of Florida Gainesville FL USA
12. Division of Gastroenterology and Hepatology Saint Louis University St. Louis MO USA
13. Division of Gastroenterology, Hepatology and Nutrition Department of Internal Medicine Virginia Commonwealth UniversityVCU Medical Center–MCV CampusWest Hospital Richmond VA USA