Last year a group at the University of Minnesota found a way to guide human embryonic stem cells into becoming a potent type of white blood cell which destroys tumour cells.

去年，明尼苏达大学的一个科研小组找出了一种可以引导人类胚胎干细胞，使其转化成强有力白细胞类型的方法，从而破坏肿瘤细胞。

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Last year a group at the University of Minnesota found a way to guide into human embryonic stem cells into becoming a potent type of white blood cell which destroys tumour cells.

去年，美国明尼苏达大学的研究小组找到了一种办法，把人类胚胎干细胞引导成一种强有力的白细胞，这种白细胞会破坏肿瘤细胞。

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ABO blood group is the most important blood group antigen in human, and the identification of suspicious ABO blood group is difficult in clinical transfusion.

ABO血型抗原是人类最主要的血型抗原，ABO疑难血型的鉴定正成为安全输血的一个重要课题。

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