This comprehensive two-volume resource presents 77 chapters, many of which are broken into sub-chapters, on all aspects of the topic. Written or co-written by 237 contributors who practice and teach worldwide, the chapters are grouped into five main sections: physiology and pathophysiology, clinical presentation of disease, clinical manifestations and management, diagnosis of gastrointestinal diseases, and principles of therapy. A sampling of topics includes persistent diarrhea, upper gastrointestinal bleeding, growth failure, helicobacter pylori and peptic ulcer disease, necrotizing enterocolitis, systemic conditions affecting the liver, and pancreatic function tests. An index is included in both volumes.