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Effects of echinacea on the frequency of upper respiratory tract symptoms: a randomized, double-blind, placebo-controlled trial
OâNeil, Joelle, Hughes, Susan, Lourie, Andrea, Zweifler, JohnVolume:
100
Langue:
english
Journal:
Annals of Allergy, Asthma & Immunology
DOI:
10.1016/S1081-1206(10)60603-5
Date:
April, 2008
Fichier:
PDF, 155 KB
english, 2008