Study on antioxidant effect and chemical constituents of Taohong Siwu decoction Study on differences of bioactive constituents and gutta in Eucommia ulmoides leaves with different species Dynamic accumulation analysis on bioactive constituents of Polygonum multiflorum in different collection periods Bioactive constituents in Herba Epimedii and their developmental strategies An tipla telet aggregation con stituen ts from Trichosan thes kirlowii Bioactive Constituents from Twigs and Leaves of Kopsia hainanensis Effect of different fractions of Taohong Siwu decoction on ADP-induced platelet aggregation and thrombin activity