Isolation and Elucidation of Chemical Constituents with Antiviral Action from Yinqiaosan on Influenza Virus Preliminary analysis on spectrum-efficient correlation model for anti-influenza virus of Lonicerae Japonicae Flos by partial least squares method In vivo anti-avian influenza virus activity of Qingkailing and Shuanghuanglian Orals Structural modification and biological evaluation of monomeric compound from Pandanus tectorius Bioactive lignans from Silybum marianum