Effect of different seed - soaking means and culture fluids on seed germination capacity of platycodon grandi florum 不同浸种方式和培养液对桔梗种子发芽率的影响
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Experimental study of the oriented differentiation of bone marrow derived mesenchymal stem cells into chondrogenic phenotype in a specific culture fluid 大鼠骨髓间充质干细胞在特定培养液条件下向软骨细胞表型定向分化的实验
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