https://pmc.ncbi.nlm.nih.gov/articles/PMC3136130/
North American (Panax quinquefolius) and Asian Ginseng (Panax ginseng) Preparations for Prevention...
Background: Standardized ginseng extract has become the best-selling cold and flu remedy in Canada, yet much controversy regarding the efficacy of ginseng in...
north americanpanax quinquefoliusasian ginsengpreparationsprevention