http://digestive.niddk.nih.gov/ddiseases/pubs/lowergi/
National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health
A review of the purpose of a lower gastrointestinal (GI) series, including general preparation for the procedure. The lower GI series may show problems like abnormal growths, ulcers, polyps, and diverticuli.