[The characteristics of duodenal peptic ulcer in persons exposed to the action of ionizing radiation].

The clinical course was studied of duodenal ulcer as were results of hematologic and immunologic investigations in those persons (n = 86) having taken part in the elimination of the aftermath of the Chernobyl accident. It has been ascertained that concomitant disorders have a marked effect on the clinical symptoms of ulcer disease in above patient population. Values for blood hemoglobin and state of cellular and humoral immunity are proposed to be used for predicting the disease course and determining efficacy of the therapy instituted.