North American <i>(Panax quinquefolius)</i> and Asian Ginseng <i>(Panax ginseng)</i> Preparations for Prevention of the Common Cold in Healthy Adults: A Systematic Review

<table>Flow diagram of study search and inclusion.</table>

Evidence-Based Complementary and Alternative Medicine

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Figure 1

Figure 1: North American <i>(Panax quinquefolius)</i> and Asian Ginseng <i>(Panax ginseng)</i> Preparations for Prevention of the Common Cold in Healthy Adults: A Systematic Review 

Figure 1 | North American (Panax quinquefolius) and Asian Ginseng (Panax ginseng) Preparations for Prevention of the Common Cold in Healthy Adults: A Systematic Review 