title: Amounts of feverfew in commercial preparations of the herb.
authors.forename: W A
authors.initials: WA
authors.lastname: Groenewegen
authors.forename: S
authors.initials: S
authors.lastname: Heptinstall
mesh_terms: D008722:Methods; D010946:Plants, Medicinal / Q000032:analysis*; D012717:Sesquiterpenes / Q000032:analysis*; D013607:Tablets; D020903:Tanacetum parthenium
chemical_list: D012717:Sesquiterpenes; D013607:Tablets