الفهرس 
acknowledgmentOnly 14 pages are availabe for public view
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Abstract
Lung cancer is a worldwide problem of substantial magnitude. The incidence of this disease entity is increasing in both sexes, espec i a I I y in women, and the rate of increase is higher in the black than in the wh ite population.’ If current trends continue, lung cancer will soon surpass breast cancer as the most cornnon cause of cancer mor ta t i ty in women. Although the human suffering and loss caused by lung cancer cannot be measured, an economic loss of approx imate ly $2 billion a year in the United States has been est ima ted f rom reported data.’ ’
One of the most useful compilations of incidence data has been derived by the n in