TY - GEN AU - Luo,K TI - [Research on the variation of hepatitis B virus and problems in the evaluation of its clinical significance] SN - 0376-2491 PY - 1998///1106 KW - Genetic Variation KW - Hepatitis B KW - virology KW - Hepatitis B virus KW - genetics KW - Humans N1 - Publication Type: Editorial ER -