The Efficacy of Echinacea Compound Herbal Tea Preparation on the Severity and Duration of Upper Respiratory and Flu Symptoms: A Randomized, Double-Blind Placebo-Controlled Study
M. Lîebert, Ph. G. FRANK LINDENMUTH, Ph.D ELISE B. LINDENMUTH•August 1, 2000•102 citations
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Abstract
Treatment with Echinacea Plus tea at early onset of cold or flu symptoms was effective for relieving these symptoms in a shorter period of time than a placebo.