Related Links American College of Gastroenterology American Liver Foundation About GERD American Cancer Society American Gastroenterological Association American Society for Gastrointestinal Endoscopy American Association for the Study of Liver Diseases Celiac Disease Foundation Celiac Sprue Association Center for Disease Control and Prevention (CDC) Crohn's and Colitis Foundation Eastside Endoscopy Center Hepatitis Education Project Hepatitis Foundation International International Foundation for Functional Gastrointestinal Disorders The Mayo Clinic National Cancer Institute Natinal Center of Complementary Medicine National Institute of Diabetes and Diabetes and Digestive and Kidney Diseases (NIDDK)
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