Chemical constituents from Glechoma longituba Chemical constituents of Quercus pannosa Chemical constituents from twigs of Myricaria bracteata Chemical constituents from Achillea alpina Studies on chemical constituents in herbs of Dracocephalum moldavica Studies on chemical constituents from herb of Dracocephalum moldavica Chemical constituents from Opuntia dillenii The Isolation and Identification of Hydyotanthraquinone Chemical constituents from Orobanche cernua Chemical constituents from aerial parts of Clematis manshurica Chemical constituents of Lagochilus ilicifolius Chemical constituents of Lagochilus ilicifolius Chemical constituents in stems of Eurycorymbus cavaleriei Chemical constituents from Opuntia dillenii Chemical constituents from branches of Daphne genkwa Low-polarity chemical constituents from Scrophularia dentata grown in Tibet In vitro metabolic transformation of syringin by rat intestinal flora Chemical constituents of Aganosma marginata Chemical constituents in stems of Eurycorymbus cavaleriei Studies on the Constituents of Lignanoids in Siphonostegia chinensis Benth.