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[Frequency dynamics of stomach and duodenum ulcer found in liquidators of consequence of Chernobyl accident (according to the data of long-term observation)].

The authors have studied the frequency dynamics of stomach and duodenum ulcer occurrence revealed in liquidators of consequence of Chernobyl accident (1986-1987) after long-term medical observation with age and radiation absorbed dose variations. According to the findings, duodenum ulcer incidence prevails over stomach ulcer in all scale of age. The connection between the frequency dynamics of duodenum ulcer and age of the patients wasn't found.