They thought they were an example of successful fertility treatment.

他们认为他们是一个成功的生育治疗的例子。

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Nearly four million babies have been born using IVF fertility treatment since 1978.

1978年以来，近四百万试管婴儿出生。

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They also need to be aware that using fertility treatment is no guarantee of success.

还需要注意的是，这项技术并不保证成功生育。

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The guidelines for NHS fertility treatment in England and Wales changed earlier this year.

BBC: Obese women miss out under IVF shake-up

Fertility treatment is far more likely to result in multiple births than natural conception.

BBC: Babies boom by a fifth in a decade - ONS

In Italy, a law passed in 2004 made it harder for couples to get fertility treatment.

ECONOMIST: Spreading freedom