title: [Echinacea angustifolia is ineffective in an experimental study].
authors.forename: Barbara
authors.initials: B
authors.lastname: Kreutzkamp
mesh_terms: D003139:Common Cold / Q000517:prevention & control*; D020900:Echinacea; D006801:Humans; D008517:Phytotherapy; D010936:Plant Extracts / Q000627:therapeutic use
chemical_list: D010936:Plant Extracts