<em>Echinacea Purpurea</em> For the Long-Term Prevention of Viral Respiratory Tract Infections During Covid-19 Pandemic: A Randomized, Open, Controlled, Exploratory Clinical Study

Added 44 days ago (14.05.2022)
Authors: Emil Kolev; Lilyana Mircheva; Michael R Edwards; Sebastian L Johnston; Krassimir Kalinov; Rainer Stange; Giuseppe Gancitano; Wim Vanden Berghe; Samo Kreft
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