The International Foundation for Functional Gastrointestinal Disorders
The American College of Gastroenterology
The Crohn’s and Colitis Foundation of America
Resource on celiac sprue, a wheat allergy that causes diarrhea
The Celiac Sprue Association
The National Digestive Diseases Information Clearinghouse
The Atlas of Gastrointestinal Endoscopy
A veritable clearing house of information on many diseases, including video.
The American Liver Foundation. Valuable information on hepatitis.
General resource on multiple topics and related drugs.
The Virtual Hospital from the University of Iowa.
"Sleep apnea impacts the GI tract greatly. If you snore, consider talking to your physician about this."
Dr. Powell states he chose to practice Gastroenterology, “to treat a wide scope of different problems and afflictions and using modern treatment to help these patients feel better.”