About half of all melanoma patients have a mutated BRAF gene. This mutation tells the cell to continue to grow.

将近半数的黑色素瘤患者都有BRAF基因突变，从而导致黑色素肿瘤细胞继续生长。

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But you do not forget that half of the Chinese people with the mutation of aldehyde dehydrogenase.

可您别忘了，中国人一半带有突变的乙醛脱氢酶。

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In aggressive gliomas, extra copies of the EGFR gene are produced, and half of such tumors also carry an EGFR mutation, which ramps up tumor growth and portends a poor prognosis.

在侵袭性脑胶质瘤中，表皮生长因子受体基因拷贝数更高，而且一半的侵袭性脑胶质瘤伴有一个GEFR突变。这个突变增加了肿瘤的生长，伴随一个糟糕的预后效果。

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