Studies of "natural" remedies for the common cold: pitfalls and pratfalls.
Turner
Ronald B
RB
Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, Virginia 22908, USA. rbt2n@virginia.edu
D002986:Clinical Trials as Topic; D003139:Common Cold / Q000517:prevention & control*; D006801:Humans; D008517:Phytotherapy; D015203:Reproducibility of Results; D012107:Research Design; D012720:Severity of Illness Index