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Evidence-Based Complementary and Alternative Medicine
Volume 2012 (2012), Article ID 841315, 7 pages
Safety and Efficacy Profile of Echinacea purpurea to Prevent Common Cold Episodes: A Randomized, Double-Blind, Placebo-Controlled Trial
1Common Cold Centre and Healthcare, Cardiff University, Cardiff CF10 3XQ, UK
2Cardiff School of Biosciences, Common Cold Centre, The Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK
3D. S. H. Statistical Services GmbH, 85296 Rohrbach, Germany
Received 27 April 2012; Revised 10 August 2012; Accepted 21 August 2012
Academic Editor: Dietlind Wahner-Roedler
Copyright © 2012 M. Jawad et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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