And last week, researchers from the University of Patras in Greece published a study, in a journal called Addiction, that compared different types of e-cigs to measure how much nicotine they deliver, and how consistent their nicotine delivery is over time.

上周，希腊帕特雷大学的研究人员在名为 Addiction 的期刊上发表了一项研究，该研究比较了不同类型的电子烟， 以测量它们释放的尼古丁量， 以及它们释放尼古丁的持续时间。