ACG Patient Information
http://www.acg.gi.org/patients/

AGA Patient Center
http://www.gastro.org/

Barrett’s information (Astra Zeneca)
http://www.barrettsinfo.com/

Celiac Sprue Association
http://www.csaceliacs.org/

Center for Disease Control and Prevention
http://www.acg.gi.org/patients/medicallinks.asp

Directory of Digestive Diseases Organizations for Patients
http://digestive.niddk.nih.gov/

Federal Trade Commission . Operation Cure-all
http://www.ftc.gov/cureall/

Hemochromatosis Info Center
http://www.hemochromatosis.org/#overview

Hemochromatosis Page from NIDDK
http://digestive.niddk.nih.gov/ddiseases/pubs/hemochromatosis/

MedlinePlus
http://www.nlm.nih.gov/medlineplus

National Cancer Institute
http://www.nci.nih.gov/

National Digestive Disease Information Clearinghouse (NDDIC)
http://digestive.niddk.nih.gov/ddiseases/a-z.asp