2XIONG X,FLORES C,YANG H,et al.Mutations in hepatitisB DNA polymerase associated with resistance to lamivudine do not confer resistance to adefovirin vitro.Hepatology,1998,28(6):1669-1673.
3NICHOLL AJ,COLLEDGE DL,TOOLE JJ,et al.Inhibition of duck hepatitis B vires replication by 9-(2-phosphonyl-methoxyethyl)adenine,ana cyclic phosphonate nucleoside analogue.Amimicrob Agents Chemother,1998,42(12):3130-3135.