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Solid-phase extraction and gas chromatography–mass spectrometry determination of kaempferol and quercetin in human urine after consumption of Ginkgo biloba tablets

Human UrineGas ChromatographyMedicineBioanalysisAnalytical ChemistrySolid-phase ExtractionClinical ChemistryGinkgo Biloba TabletsChromatographic AnalysisPharmacologyPharmacokineticsChromatographyDrug Analysis