Genetic Determinants of Autoimmune Chronic Active Hepatitis.- The Role of Liver Membrane Antigens as Targets in Autoimmune Type Liver Disease.- Immunologic Effector Mechanisms in Hepatitis B-Negative Chronic Active Hepatitis.- Drug-Induced Chronic Hepatitis.- Clinical, Histologic, and Immunopathologic Features of Primary Biliary Cirrhosis.- Serology of Primary Biliary Cirrhosis.- Pathogenic Mechanisms in Primary Biliary Cirrhosis.- Hepatic Transplantation.- The Nature of the Hepatitis B Virus and its Mode of Replication.- The Immunopathology of Acute Type B Hepatitis.- The Immunopathogenesis of Chronic HBV Induced Liver Disease.- Immunopathogenesis of the Extrahepatic Manifestations of Hepatitis B Virus Infection.- Primary Liver Cancer and its Relationship to Chronic Infection with the Hepatitis B Virus.