1. Celiac Center; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston; MA; USA
2. Celiac Disease Center; Columbia University; New York; NY; USA
3. Division of Gastroenterology and Hepatology; Mayo Clinic; Rochester; MN; USA
4. Thomas Jefferson University Hospital; Philadelphia; PA; USA
5. Pittsburgh Gastroenterology Associates; Pittsburgh; PA; USA
6. Gastrointestinal Specialists; Troy; MI; USA
7. Department of Internal Medicine; University of Kentucky; Lexington; KY; USA
8. Alba Therapeutics Corporation; Baltimore; MD; USA
9. Division of Gastroenterology; University of Alberta; Edmonton; AB; USA