This book is a completely up-to-date review of the basic tests available in gastroenterology. It is based on a detailed critical analysis of recently described procedures and the review of more traditional methods; each is as signed its correct place in the modern management of patients. Emphasis is placed on those techniques with which the authors have practical experience. The most useful investigations are indicated in the table of contents by heavy type. Comprehensive references are included to provide information about the selection, performance and interpretation of tests. The book is...