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Echinacea for preventing and treating the common cold.
Melchart D, Linde K, Fischer P, Kaesmayr J. Melchart D, et al. Cochrane Database Syst Rev. 2000;(2):CD000530. doi: 10.1002/14651858.CD000530. Cochrane Database Syst Rev. 2000. PMID: 10796553 Updated. Review.
125 results