PART I. Epidemiology, Pathology and Diagnosis.- Chapter 1. Epidemiology and risk stratification as a guide for an effective screening strategy in the west.- Chapter 2. Carcinogenesis in the Era of Molecular Classifications.- Chapter 3. Carcinogenesis in the Era of Molecular Classifications.- Chapter 4. The new field of view of endoscopy and histological diagnosis.- Chapter 5. Hereditary gastric ca...