[Changes in the mucous membrane of the trachea and bronchi in dogs based on bronchoscopic data for the combined action of 239Pu and gamma-radiation as compared with the individual actions].

It was established that under conditions of combined exposure of dogs to external gamma- and internal alpha-radiation, a preirradiation with 51.6 mC/kg gamma-rays prevents the development of the signs of endobronchitis which are typical for endobronchitis induced by inhalation of submicron 239Pu dioxide and manifested by hyperemia of trachea and bronchus mucosa, edema, and the presence of mucopurulent exudate.