Respiratory Problems, Age 12 and Older

References

Citations

1. Shah SA, et al. (2007). Evaluation of echinacea for the prevention and treatment of the common cold: A meta-analysis. Lancet Infectious Diseases, 7(7): 473-480.

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Author:	Jan Nissl, RN, BS	Last Updated: February 25, 2008
Medical Review:	William H. Blahd, Jr., MD, FACEP - Emergency Medicine William M. Green, MD - Emergency Medicine Martin Gabica, MD - Family Medicine H. Michael O'Connor, MD - Emergency Medicine
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