方法在相同细胞因子组合下，用体外液体培养比较脐血有核细胞程序扩增组与一次扩增组及有无基质层条件下的优劣。
Methods under the same condition with hematopoietic factors in the liquid culture, compared the sequential expansion group and once for all expansion group with or without stroma cell layer.
大肠济华花的脐出去一下是不寻常的。
Large intestines popping out of the umbilicus in Chihuahuas are uncommon.
目的探讨彩超引导下脐静脉穿刺术的安全性和成功率。
Objective To evaluate the efficacy and safety of color-ultrasound guided percutaneous umbilical blood sampling.
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