如今有了干细胞技术，也就有了两条途径可选。
Now with stem cell technology there are two pathways that are imaginable.
其目标不仅是制造婴儿，还希望以此作为获取干细胞的途径。
Their aim is not to produce a baby, but a source of stem cells.
是否有特殊途径获得血标本以检查异体细胞？
Is there a particular way to obtain blood for foreign cell analysis?
这种药物可针对细胞内的关键靶信号途径从而阻滞或延缓肿瘤生长。
Such drugs target key signaling pathways within cells that can stop or slow tumor growth.
这种药物可针对细胞内的关键靶信号途径从而阻滞或延缓肿瘤生长。
Such drugs target key signaling pathways within cells that can stop or slow tumor growth.
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