National Institutes of Health
National Institute of Diabetes and Digestive and Kidney Diseases: Hemorrhoids
This site discusses what hemorrhoids are, their symptoms, prevention, and treatment.
Akron Children's Hospital
Akron Children's Hospital: Kidshealth: Ugh! Ulcers
Have you ever heard of ulcers? Learn all about them in this article for kids.
US National Library of Medicine
Medline Plus: Heartburn
From MedlinePlus, a video tutorial featuring information on heartburn with accompanying text.