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1986年,美国外科医生总会(US.SG)已经明确提出,主动吸烟可以导致不吸烟的健康人患肺癌及其它疾病。同年,这些说法也被华盛顿地区的“国家研究讨论会”(NRC)证实。随后的研究也肯
In 1986, the United States General Association of Surgeons (US SG) has clearly stated that active smoking can lead to non-smoking healthy people suffering from lung cancer and other diseases. In the same year, these claims were also confirmed by the National Research Seminar (NRC) in the Washington area. Subsequent research is also willing to