1. Hepatitis B virus;Hollinger,2001
2. Viral Hepatitis Prevention Board. Prevention and control of hepatitis B in the community. Communicable Disease series, 1996, p. 1.
3. Hepatitis B vaccine;Mahoney,1999
4. Hepatitis B viruses, general features (human);Robinson,1994
5. Hepatitis B virus and hepatitis D virus;Robinson,1955