title: Information on additional Echinacea trials.
authors.forename: G
authors.initials: G
authors.lastname: Ertel
authors.forename: H
authors.initials: H
authors.lastname: Manley
authors.forename: C
authors.initials: C
authors.lastname: McQueen
authors.forename: P
authors.initials: P
authors.lastname: Bryant
mesh_terms: D000328:Adult; D002648:Child; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D020900:Echinacea / Q000627:therapeutic use*; D006801:Humans; D007223:Infant; D008517:Phytotherapy; D010946:Plants, Medicinal; D012141:Respiratory Tract Infections / Q000188:drug therapy*