Effect of echinacoside on replication and antigen expression of hepatitis B virus In vitro anti-HBV activities of phyllocoumarin and (-)-epicatechin from Schisandra lancifolia Cell Model Construction of Regulated Hepatitis B Virus X Gene Expression Thymopolypeptides combined with matrine type alkaloids suppress HBV replication Advances in studies on anti-hepatitis B virus of natural active polysaccharides Effect of ampelopsis of ampelopsis grossedentata on duck hepatitis B virus