The method exploits a characteristic of immune cells carried in the blood known as t cells. The approach enables scientists to estimate a person's age, give or take nine years either side.
在这种方法中，科学家通过运用血液中携带的免疫T细胞的特点，可以估计一个人的年龄，而误差为九岁左右。
Possible side effects include dizziness, headache, fatigue, and a lowering of blood pressure.
有可能的副作用包括头晕眼花，头疼，疲劳和血压降低。
On one side of the sheet, blood-vessel cells mimic a capillary wall; on the other, lung-cancer cells mimic lung epithelial cells.
在这张图的上边，血管壁细胞模仿毛细血管，，在另一边，模拟肺癌细胞的肺上皮细胞。
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