title: Quantitative determination of hellebrin in the rhizomes and roots of Helleborus purpurascens W. et K.
mesh_terms: D002018:Bufanolides; D002301:Cardiac Glycosides / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000032:analysis*
chemical_list: D002018:Bufanolides; D002301:Cardiac Glycosides; C007913:hellebrin