Progress in pharmacokinetic study on main active ingredients of Ginkgo biloba leaf extract ADVANCES IN RESEARCH ON FLAVONOIDS IN GINKGO BILOBA LEAF Comparison study on Total Flavonoid Content and Anti-free Redical Activity of the Leaves of Bamboo,phyllostachys nigra, and Ginkgo bilabo Purification of Ginkgo biloba leaf extract and flavone on β-cyclodextrin-Superose 12 pg STUDY ON THE SYNTHESIS AND METABOLISM OF THE FLAVONOIDS IN GINKGO BILOBA LEAF STUDY ON THE RELATIONSHIP BETWEEN THE FLAVONOIDS AND PIGMENTS IN GINKGO BILOBA LEAF Effect of Coppice Management on Physiological and Biochemical Indexes and Yield of Ginkgo biloba Leaves Seasonal Variations of Leaf Nutrient Concentrations in Ginkgo biloba L.