Lung cancer morbidity in MSSR is analysed on the basis of statistical data for 1966-1972. The rate of lung cancer incidence is found to be higher than in cancer of the stomach. As a result of extrapolation of average tendencies in the morbidity and mortality of main cancer localizations, it was found that provided the observed tendencies are remained, lung cancer will occupy the first place in the structure of oncological morbidity (to 1976--1977) and mortality (to 1979--1980).
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