The American Society of Colon and Rectal Surgeons is the leading professional society representing more than 1,000 board-certified colon and rectal surgeons and other surgeons dedicated to treating people with diseases and disorders affecting the colon, rectum, and anus.

The Children's Digestive Health and Nutrition Foundation (CDHNF) Web site helps parents, children, and teens learn more about reflux and GERD, celiac disease, inflammatory bowel disease, and other digestive disorders in children.

Crohn's and Colitis Foundation of America (CCFA) is a nonprofit, voluntary organization dedicated to finding the cure for Crohn's disease and ulcerative colitis. This organization sponsors basic and clinical research, offers educational programs for patients and health professionals, and provides supportive services.

This clearinghouse is a service of the U.S. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the U.S. National Institutes of Health. The clearinghouse answers questions; develops, reviews, and sends out publications; and coordinates information resources about digestive diseases. Publications produced by the clearinghouse are reviewed carefully for scientific accuracy, content, and readability.

The Wound, Ostomy and Continence Nurses Society (WOCN) is a professional, international nursing society of more than 4,200 health professionals who are experts in the care of people who have wounds, ostomies, and incontinence. The Web site offers a way to search for a Wound, Ostomy and Continence Nurse in your area. WOCN also publishes patient guides, lists other related Web sites, and has information about specialty clothing and accessories for people who have wounds, ostomies, and continence disorders.