5Jongerious JM, Wester M, Cuyper HTM, et al. New hepatitis B virus mutant from in a blood donor that is undetectable in several hepatitis B surface antigen screening assaysd[J]. Transfusion, 1998, 2:56-59.
6Poussin K, Dienes H, sirma H, et al. Expression of mutated hepatitis B virus X genes in human hepatocellular carcinomas [J]. Int J cancer,1999, 80(4) :497 - 505.