It gets its name from the abnormal electrical signals the heart gives off - signals that be seen in a patient's EKG.

它根据心脏产生的异常电信号得名——这些信号可以从患者的心电图上看出。

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Previous studies pointed to abnormal blood vessel growth that starves a developing placenta of oxygen, but researchers had little clue what set off those changes.

此前研究指出异常的血管生长使得发育中的胎盘缺氧，但研究者对引发其变化的原因找不到丝毫线索。

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Don't knock yourself off as being abnormal... many people have felt those uncomfortable feelings you do.

不要以不正常来打击自己…许多人拥有那些你有的不舒适感觉。

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At present doctors test for the presence of abnormal proteins called prions which are thought to cause the disease by killing off brain cells.

BBC: NEWS | Health | Hopes for better vCJD diagnosis