The course of duodenal peptic ulcer in the participants in the cleanup of the aftereffects of the accident at the Chernobyl Atomic Electric Power Station

: 80 liquidators of Chernobyl disaster with aggravation of duodenal ulcer were examined, as well as a control group of 70 patients. In the group of liquidators some characteristic features were disclosed, namely peculiarities in the state of abdominal mucosa and clinical course of the disease. These data were obtained in the results of hematological, immunological and biochemical researches.