THE BIOLOGY OF HEPATITIS B VIRUS AND HEPATOCELLULAR CARCINOMA11The hepatitis research programme at the London School of Hygiene and Tropical Medicine is supported by generous grants from the Medical Research Council, the Department of Health and Social Security, the Wellcome Trust, the World Health Organization and Organon B.V.The hepatitis B vaccine development at the London School of Hygiene and Tropical Medicine is generously supported by the British Technology Group (formerly the National Research Development Corporation), the Department of Health and Social Security, and the Wellcome Trust and the Commission of the European Economic Community.