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Updated: Jan 10, 2026

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Preparation of Gynura bicolor DC samples for High-Resolution Tandem Mass Spectrometry
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[Original botanical statistics and commercial study of the Chinese drug touguchao]
Abstract:
According to original botanical statistics, there are 42 species and 5 varieties belonging to 20 families called or used as Touguchao. Commercial investigation shows that 16 species belonging to 12 families are presently available on the market in China.
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