Should nature be standardized?
William
W
Benda
D019587:Dietary Supplements / Q000592:standards*; D006293:Health Promotion / Q000592:standards; D006801:Humans; D008517:Phytotherapy / Q000592:standards*; D028321:Plant Preparations / Q000592:standards*; D012651:Self Medication / Q000592:standards; D014481:United States
D028321:Plant Preparations