Effect of drying method on transformation of bioactive constituents in Polygoni Multiflori Radix Optimization of integration of field processing and processing crude drugs of Polygoni Multiflori Radix Study on preparation of silver nanoparticles by biomass reduction of traditional Chinese medicinal materials and their antibacterial activity Comparative study on preparation of Polygoni Multiflori Radix based on hepatotoxic bioassay Comparison of processed and crude Polygoni Multiflori Radix induced rat liver injury and screening for sensitive indicators Quality evaluation and control of Polygoni Multiflori Radix based on chemical fingerprint and toxicity monitoring Effect of high pressure processing on stilbene glycoside and phosphatidylcholine in Polygoni Multiflori Radix Effect of high pressure processing on stilbene glycoside and phosphatidylcholine in Polygoni Multiflori Radix Quality control of Tongmai Yangxin Pills Determination of multiple functional substances in different processed products of Polygoni Multiflori Radix and principal component analysis ICP-MS analysis on inorganic elements in Polygoni Multiflori Radix from different habitats and commercial herbs