The fields of gastroenterology and hepatology have changed dramatically in the past ten years, partially as a result of the impressive advances in understanding the molecular and pathophysiologic basis of gastrointestinal disorders. Such advances have spawned translational research, which in turn has resulted in important new diagnostic and therapeutic modalities. In addition, the expanding knowledge base has resulted in the development of sub-subspecialties within the fields of gastroenterology and hepatology, such as liver transplantation, pancreatic disease, inflammatory bowel disease, and motility disorders. Several topics in these disciplines are discussed in detail in Current Diagnosis & Treatment: Gastroenterology, Hepatology, & Endoscopy. Most notably, an entire section of the book is devoted to advances in diagnostic and therapeutic endoscopy.