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Fractionation and characterization of polysaccharides from cyanobacterium Spirulina (Arthrospira) ma
By a sequentially selective extraction procedure, polysaccharides (PS) from cyanobacterium Spirulina (Arthrospira) maxim......
目的探讨医务人员心理应激的相关因素。方法采用整体随机抽样的方法选取498名医务人员为调查对象,运用自编个人基本信息调查表、症......