An interesting study of the effects of smoking with exposure to asbestos is called the effect of asbestos and tobacco in lung cancer "by Liddell, FDK – Oxford Journals Medicine – Annals of Occupational Medicine HygieneVolume 45, Issue5Pp., asbestos cigarettes, 341-356. In this excerpt. Summary – Both cigarette smoke and the inhalation of asbestos can cause lung cancer, but assessment of how these drugs work together is a very difficult non-smokers, the condition is so rare that the category of asbestos workers mortality ratio (SMR, which is the ratio of the number of deaths observed and expected) is quite accurate.