www.niddk.nih.gov/health/digest/pubs/celiac
www.csaceliacs.org
www.celiac.com
www.glutenfreeinfo.com
www.gluten.net
National Library of Medicine
National Institute of Diabetes and Digestive and Kidney Diseases
American Gastroenterological Association
American College of Gastroenterology
The Crohn's and Colitis Foundation of America
Ontario Association of Gastroenterology
Crohn's and colitis foundation of Canada