Echinacea for the common cold: exploring the rational of scientific research on complementary and alternative medical therapies.
Ulrich
Daniel W
DW
Department of Complementary and Alternative Medicine, John A. Burns School of Medicine, USA.
Harrigan
Rosanne
R
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