In order to arouse people's more attention, this article mainly review the endangerment of ETS exposure of pregnant women from the two aspects of recent and forward.

为了唤起人们对孕妇被动吸烟更多的关注，本文主要从近期及远期两方面来综述孕妇被动吸烟的危害。

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Some of the lessons learned from a large study of personal exposure of non smokers to environmental tobacco smoke (ETS) in the United Stated are reviewed.

本文对在美国所进行的不吸烟者环境香烟烟雾(ETS)暴露水平的大样本研究作了综述。

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Thus, it is strange that most of the emphasis on smoking bans has been on the projected large number of lives that will be saved by eliminating exposure to ETS in public places.

FORBES: Do Smoking Bans Really Save Lives? If So, Whose?

None of the research groups that have worked on developing these models has felt that it was important to include the much weaker effect of exposure to ETS, even though a number of them have assessed this association.

FORBES: Do Smoking Bans Really Save Lives? If So, Whose?

Smoking bans could have an effect on reducing heart attacks or heart disease generally by one of two major routes: either by inducing current smokers to quit or by reducing the exposure of non-smokers to environmental tobacco smoke (ETS).

FORBES: Do Smoking Bans Really Save Lives? If So, Whose?