我认为环境问题是最主要的原因。但在北京，70%——80%的重癌症病例都和环境有关系。

I think environmental factors are probably the main cause. In Beijing alone, 70-80 percent of all fatal cancer cases are related to the environment.

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费勒记得当时医生说不要重“她说，没什么事儿，别担心，不会是癌症的。”

Feiler remembers his doctor was not concerned. "She says." It looks like nothing, don't worry, it's not like you have cancer.

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那些或许是出于癌症治疗的需要而在年轻时把卵巢组织冷冻起来的女性，可以在年老时把年轻的组织重植入自己身上，“Kagawa博士表示，”一般来说，这种做法是为了保护她们的生育能力或延长她们的生殖期限。

“Women who have ovarian tissue frozen at a young age, perhaps because they are about to embark on cancer treatment, can have their young tissue transplanted back when they are older,” says Dr Kagawa.

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