Whether potential patients are worried about whether they are bleeding from their intestines or have GERD-level heartburn, this gives them symptoms and signs in clear and understandable language. Editor Leahy (gastroenterology, Tufts U. School of Medicine) describes everything from the basics of gastroenterology to pharmaceutical causes of gastrointestinal problems, the testy relationship between the esophagus and stomach, disorders related to stomach, ulcers, inflammatory bowel disease, Crohn's disease (and its relation to genetics), colitis, malnutrition (including common signs of vitamin and mineral deficiencies), intestinal infections, gastroenteritis, food borne illnesses, travelers' diarrhea, gastrointestinal cancer, colonoscopy, esophageal cancer, the pancreas and gall bladder, pancreatitis, gallstones, the liver and its diseases, and the effects of over-the-counter drugs on the liver. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)