title: Echinacea for the common cold: exploring the rational of scientific research on complementary and alternative medical therapies.
authors.affiliation: Department of Complementary and Alternative Medicine, John A. Burns School of Medicine, USA.
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Ulrich
authors.forename: Rosanne
authors.initials: R
authors.lastname: Harrigan
mesh_terms: D000328:Adult; D003139:Common Cold / Q000188:drug therapy* / Q000517:prevention & control; D020900:Echinacea; D006801:Humans; D008517:Phytotherapy; D016032:Randomized Controlled Trials as Topic; D012106:Research; D013997:Time Factors