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Effects of echinacea on the frequency of upper respiratory tract symptoms: a randomized, double-blind, placebo-controlled trial

BACKGROUND: Upper respiratory tract infection symptoms are a common cause of morbidity. Herbal preparations of the plant Echinacea purpurea have immune-enhancing properties. OBJECTIVE: To compare the frequency of upper respiratory tract symptoms in individuals receiving E purpurea capsules and those...

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Detalles Bibliográficos
Autores principales:	O’Neil, Joelle, Hughes, Susan, Lourie, Andrea, Zweifler, John
Formato:	Online Artículo Texto
Lenguaje:	English
Publicado:	American College of Allergy, Asthma & Immunology. Published by Elsevier Inc. 2008
Materias:	Article
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7129680/ https://www.ncbi.nlm.nih.gov/pubmed/18450126 http://dx.doi.org/10.1016/S1081-1206(10)60603-5

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