Marshmallow (Althaea officinalis L.) References
Buechi S, Vogelin R, von Eiff MM, et al. Open trial to assess aspects of safety and efficacy of a combined herbal cough syrup with ivy and thyme. Forsch.Komplementarmed.Klass.Naturheilkd. 2005;12(6):328-332.
Cravotto G, Boffa L, Genzini L,...
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