C CINCHONAIN-IB PDF
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Plant Low PPM High PPM StdDev *Reference Cinchona pubescens Bark -- 836.0 * Cinchona spp Bark -- -- Chemical Constituents of Oriental Herbs (3 diff. books)*Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.