1. State of hepatitis B virus DNA in hepatocytes of patients with hepatitis B surface antigen-positive and -negative liver diseases;Brechot,1981
2. Cloning in Escherichia coli and physical structure of hepatitis B virion DNA;Charnay,1979
3. Electron microscope heterduplex methods for mapping regions of base sequence homology in nucleic acids;Davis,1971
4. Presence and state of woodchuck hepatitis virus DNA in liver and serum of woodchucks: Further analogies with human hepatitis B virus;Dejean;Virology,1982