American College of Gastroenterology
www.acg.gi.org

American Gastroenterological Association
www.gastro.org

American Society for Gastrointestinal Endoscopy (ASGE)
http://www.asge.org/

National Institute of Diabetes and Digestive Kidney Disease (NIDDK)
www.niddk.nih.gov

American Society for Parenteral and Enteral Nutrition (ASPEN)
www.nutritioncare.org

The Oley Foundation, Inc.
www.oley.org

American of Gastrointestinal Motility Disorders, Inc. (AGMD)
www.agmd-gimotility.org

The National Pancreas Foundation
www.pancreasfoundation.org

The Pancreatic Cancer Action Network, Inc
www.pancan.org

Children's Liver Disease Foundation (UK)
www.childliverdisease.org

American Liver Foundation (ALF)
www.liverfoundation.org

National Cancer Institute (liver cancer)
http://www.cancer.gov/cancertopics/types/liver/

Gluten Intolerance Group (GIG)
www.gluten.net

American Celiac Society
www.americanceliacsociety.org

Celiac Disease Foundation (CDF)
www.celiac.org

Crohn's and Colitis Foundation of America, Inc
www.ccfa.org