Objective To study the phenotype and genotype of a protein S (PS) deficiency pedigree.
目的研究一个遗传性蛋白S（PS）缺陷家系的遗传表型及基因型特征。
Objective To synthesize group a meningococcal polysaccharide (PS) protein conjugate and study on its immunogenicity.
目的制备A群脑膜炎球菌多糖(PS)结合物，观察其免疫原性。
Objective To synthesize group a meningococcal polysaccharide (PS) protein conjugate and study on its immunogenicity.
目的制备A群脑膜炎球菌多糖(PS)结合物，观察其免疫原性。
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