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Supplement Safety

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Echinacea Research

Effectiveness of an Herbal Preparation Containing Echinacea, Propolis, and Vitamin C in Preventing Respiratory Tract Infections in Children, A Randomized, Double-blind, Placebo-Controlled, Multicenter Study

Efficacy of a standardized echinacea preparation (Echinilin) for the treatment of the common cold: a randomized, double-blind, placebo-controlled trial.

An evaluation of Echinacea angustifolia in experimental rhinovirus infections.

Echinacea for preventing and treating the common cold.

Immune System Effects of Echinacea, Ginseng, and Astragalus: A Review

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