Chemical constituents in antiviral fraction of Isatidis Radix and their activities Spectrum-activity relationship of hemagglutination components in Isatidis Radix Evaluation on quality change of Isatidis Radix Granule during preparationprocess based on antibacterial potency Effect of different drying methods on active components in water extracts from Isatidis Radix Spectrum-effect relationship of antibacterial extracts from Isatidis Radix Spectrum-activity relationship of hemagglutination components in Isatidis Radix Evaluation on quality change of Isatidis Radix Granule during preparation process based on antibacterial potency Correlation between chemical composition in process of Isatidis Radix preparation and its pharmacological activity System isolation and purification of Isatidis Radix polysaccharides and determination of their compositions Bio-evaluation methods and optimization for Isatidis Radix quality control based on antiviral activity detection Screening bioactive compounds inhibiting influenza virus from Isatidis Radix by ultrafiltration mass spectrometry Comparative studies on anti-inflammatory and analgesic activities of different fractions from Isatidis Radix Study on double fingerprints of Isatidis Radix micropower Structures and bioactivity of polysaccharides from Isatidis Radix Effect of harvest times on yield and quality of Isatidis Folium in Longzhong semi-arid region