Early onset of puberty (age 11 or younger).

青春期发育过早(11岁或更早)。

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We found that there are genetic markers for early onset PD in our country.

我们发现，在我国有早发性帕金森病的遗传标记。

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The number of children experiencing the early onset of puberty has doubled over the past 10 years.

早熟儿童的数量在过去十年中翻了一番。

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Its researchers are studying families with a genetic mutation that triggers the early onset of Alzheimer's.

ECONOMIST: Alzheimer's disease

Best-selling novelist Terry Pratchett was diagnosed with early onset Alzheimer's disease last December.

BBC: Dementia patients 'suffer stigma'

Last year an early onset of the flu caught officials by surprise and the U.S. fell short of necessary doses in certain regions.

FORBES: Broken Eggs