1. Hepatocellular carcinoma and the hepatitis B virus: evidence for a causal association;Szmuness;Prog Med Virol,1978
2. Human virus, hepatic cancer;Anonymous;Lancet,1981
3. Viral hepatitis, the B antigen and liver cancer;Zuckerman;Cell,1974
4. Three recently described animal virus models for human hepatitis B virus;Summers;Hepatology,1981
5. Hepatocellular carcinoma and hepatitis B virus;Beasley;Lancet,1981