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A population-based case-control study was performed in Cracow, Poland. Male cases and controls were identified from the Cracow Death Register. Information were obtained by mailed questionnaire from next-of-kin on smoking, occupational branch, occupational exposures and other pertinent variables. Response rates were 73.5% in cases and 72.0% in controls. For(More)
The aim of this clinically controlled trial was to assess the effect of different smoking patterns on development of different histological types of lung cancer. The study group consisted of 1,432 subjects that died due to lung cancer in the years 1980-1987. 627 of these had the histological type of the cancer determined; 54% had squamous cell cancer, 24%(More)
Deaths due to the lung cancer has been investigated among the Cracow inhabitants in years 1980-1985. The control group consisted of men died to other causes than diseases and neoplasms of the respiratory tract. Data on smoking habits and habitation place of the investigated and the control group were received from family members of subjects studied. It has(More)
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