Division of Gastroenterology;
Department of Internal Medicine;
American University of Beirut Medical Center;
Department of Internal Medicine;
American University of Beirut Medical Center;
Department of Internal Medicine;
Indiana University School of Medicine;
Department of Internal Medicine;
University of Pittsburgh Medical Center;
Division of Gastroenterology;
Department of Internal Medicine;
Columbia University College of Physicians and Surgeons;
Celiac disease; Gluten-free diet; Insulin dependent diabetes mellitus; Iron defi ciency anemia; Middle East;