1. World Health Organization, fact sheet no. 204: hepatitis B. Revised October 2000. Available at: http://www.who.int/mediacentre/factsheets/fs204/en/index.html [accessed 18 May 2005].
2. Progress towards the comprehensive control of hepatitis B. Introduction;Zuckerman;Gut,1996
3. Hepatitis B: a serious public health threat. Viral Hepatitis Prevention Board;Grob;Vaccine,1998
4. Recombinant hepatitis B vaccines: disease characterization and vaccine production;Brocke,2005