title: The assay of hydrastis and hydrastis preparations.
authors.forename: D M
authors.initials: DM
authors.lastname: COPLEY
mesh_terms: D001681:Biological Assay; D001688:Biological Products; D039321:Hydrastis; D012015:Reference Standards
chemical_list: D001688:Biological Products
keywords: HYDRASTIS/standardization