Tobacco use is the cause of the majority of lung cancer cases and it has been linked to many other types of cancer, such as cervical and kidney cancer.

烟草的使用是造成大多数肺癌病例的原因，并且与许多其它癌症有关，如宫颈癌和肾癌。

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Lung cancer justifies inordinate resources and attention because it is the leading cause of death among all cancers (and many other diseases).

肺癌需要更多的医疗资源和关注是因为它是所有癌症(和其他疾病)中死亡率最高的。

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But what is more curious is this: the retrovirus is closely related to a free-living virus called Jaagsiekte sheep retrovirus, which causes lung cancer in sheep and goats, but not other species.

不过更奇怪的是：这种逆转录病毒与一种游离生活的绵羊肺腺瘤逆转录病毒(可以引起绵羊和山羊患肺癌)而不是其它种更加接近。

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Nonsmokers are also affected. Thousands in the United States die each year from heart disease and lung cancer from breathing other people's tobacco smoke.

VOA: special.2009.05.27

The World Health Organization says at least five million tobacco users die every year from lung cancer, heart disease and other smoking-related causes.

VOA: standard.2010.02.18

The more prevalent causes of death for male and female smokers were lung cancer and other respiratory diseases followed by heart disease, stroke, and vascular disease.

FORBES: The Smoking Gun: Women Catch Up To Men On Lung Cancer Risk

His long-term risk also rises, as narrowing arteries threaten him with heart disease and his chances of developing lung cancer and numerous other nasties also increase.

ECONOMIST: Smoking and public health

And switching from cigarettes to snus eliminates the risk of heart disease, lung cancer and the other systemic diseases related to smoking.

FORBES: Magazine Article