Research progress in immune regulation mechanism of Polygonati Rhizoma polysaccharide

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Polygonati Rhizoma is the dry rhizome of Liliaceae plants Polygonatum kingianum coil ethemsl,Polygonatum sibiricum Redoute and Polygonatum cyrtonem Hua.It tastes sweet and has a flat nature.It belongs to the spleen,lung and kidney channels.Polygonati Rhiz
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