FROM THE PREFACE: The original purpose of the First Edition of Physiology of the Gastrointestinal TractThe table of contents of the fourth edition of the Physiology of the Gastrointestinal Tract is impressive, and brings together a wide range of true experts in their fields. The chapters are authoritative and up to date. There has been a real attempt to cover the entire field of GI Physiology. There is no other text that currently offers this degree of depth of coverage with monographs by leaders in their fields. This will be a wonderful resource for investigators in GI Physiology and for those educators who teach that subject." -David H. Alpers, MD, William B. Kountz Professor of Medicine, Washington University School of Medicine, St. Louis, Missouri