Lung cancer was a less known condition till after the WWI when a sudden increase in number of cases affected by tumors of the lower respiratory tract was noticed. Prior to the WWI, the tobacco industry has increased its production manifold which was directly related with the increase in number of patients with lung cancer. Even though the tobacco industry denied having anything to do with this increase, it was conclusively established in 1950s that there existed a strong link between cigarette smoking and development of tumors in lower respiratory tract. Even though initially most of the cases were found in males, since 1987 things have changed dramatically and now women account for 40% of lung cancer cases found in the U.S.

Statistics show that in 1878, lung tumors were found in hardly 1% of cases emerging at the Institute of Pathology of the University of Dresden in Germany. After...
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