小白鼠的青春期始于出生后大约60天，因此这段时期研究人员观察得尤为仔细。
Rats hit puberty when they are about 60 days old, so the researchers started watching them especially closely around that age.
艾米纳姆出生在堪萨斯，后在底特律度过少年时期，在密西根期间迷上了说唱乐，可以说是对复杂的青春期的一种逃避。
Eminem was born in Kansas but raised as a teenager in Detroit, Michigan where he became interested in rap music as an escape from a troubled adolescence.
从出生后至青春期这一年龄段的任何时期均可发病，多在儿童期起病；
The onset age of patients varies from birth to adolescence, mostly in childhood.
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