Optimization for formulation of Ginkgo biloba liquid-filled hard gelatin capsules by orthogonal design Fingerprint for extract of Ginkgo biloba leaves Protective effects of extract of Ginkgo biloba on adriamycin-induced heart failure and its mechanism: role of ghrelin peptide Determination of rutin,quercetin,kaempferol,and isorhamnetin in extract of Ginkgo biloba leaves by HPLC with solid phase extraction Effects of Extracts of Ginkgo Biloba (EGB) on Levels of Nitric Oxide and Apoptosis in the Retina Induced by Glutamate in Adult Rabbits Study on the Preparation of Rapid-dissoluted EGb Droppills