This is the third volume on gastrointestinal cancer of the Cancer Treatment and Research Series. The emphasis in this volume is to present a series of papers on areas of high clinical relevance in malignant diseases of the gut. As in the first and second volumes of this series, authors have been selected for their expertise and national and international prominence in their fields. This volume is organized so that papers explaining basic science pro spec- tives proceed those dealing with clinical aspects of gastrointestinal cancer. It is clear that in many instances advances gastrointestinal...