Determination of seven components in Forsythia suspensa by RP-HPLC Determination of plasma protein binding rate of arctiin and arctigenin with ultrafiltration Transformation of arctiin in water extract of Arctii Fructus with Aspergillus niger Advances in studies on pharmacological effect of arctiin and arctigenin Chemical constituents from inflorescence bracts of Arctii Fructus Activity of in vitro anti-influenza virus of arctigenin Research on preparation of arctigenin from Arctii Fructus Chemical constituents from plant of Stelleropsis tianschanica Studies on the Calcium Antagonist Action of Arctigenin Transformation of arctiin in water extract of Arctii Fructus with Aspergillus nigger