Researchers have succeeded in developing a human embryonic stem-cell line from an embryo that had died naturally.

研究者已经成功的从自然死亡的胚胎当中培育出了一个人胚胎干细胞系。

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He used to be in charge at Geron and helped fund the research which led to first human embryonic stem cell line being created in 1998 and now heads another company, BioTime.

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