of lung cancer in men. The marked increase in cigarette smoking by women in the 1940s, perhaps because it became more socially acceptable during the war, was unfortunately followed 20 years later by a similar increase in the incidence of lung cancer among women. It has been estimated that if all tobacco disappeared from the earth, 17 percent of all cancers would also disappear. The attempt to discontinue cigarette smoking remains one of the most crucial medical issues in our society.
Lung cancer may predispose a person to a higher risk of developing another lung cancer later.
