Impact of genetic engineering on hepatitis B virus.
D005818:Genetic Engineering; D006511:Hepatitis B Antigens / Q000235:genetics*; D006512:Hepatitis B Core Antigens / Q000235:genetics; D006515:Hepatitis B virus / Q000276:immunology*
D006511:Hepatitis B Antigens; D006512:Hepatitis B Core Antigens