sujets spéciaux
Échinacée
Références
1.Karsch-Volk M, Barrett B, Kiefer D, et al:Echinaceafor preventing and treating the common cold.Cochrane Database Syst Rev(2) CD000530, 2014. doi: 10.1002/14651858.CD000530.pub3 2.David S, Cunningham R: Echinacea for the prevention and treatment of upper respiratory tract infections: a systematic review and meta-analysis.Complement Ther Med44:18-26, 2019. doi: 10.1016/j.ctim.2019.03.011 