Psychology is diseased person, milquetoast careful with!

心理不健全者，胆小者慎用！

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Some diseased cells, like those from a tumor biopsy, are already available for study, but those are from a person already sick.

从肿瘤活组织切片检查中可以获得已经发生病变的细胞对疾病的治疗也是有用的，但是这种情况的前提是被检查者已经得病了。

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We know how to remove a person's diseased heart, replace it with the heart of a cadaver, and have the person live out the rest of their life.

我们知道如何切除患者病变的心脏，然后换上死人的心脏，以延长患者寿命。

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There is potential that stem cells could help replace diseased, damaged or dying cells and contribute towards improved function of that person's organs, possibly representing a cure for the disease from which they suffered.

BBC: NEWS | Health | 'This is a very exciting advance'