[The ultrastructure of peripheral blood lymphocytes in children after long-time exposure to radioactive cesium].

: The ultrastructure of peripheral blood lymphocytes of children which living in conditions of chronic intake of 137Cs through the food chain studied by method of transmission electron microscopy. The essential changes in the submicroscopic organization of intracellular organelles, especially mitochondria, in the basic group compared to control. The most pronounced changes were observed in the subgroup of children with the level of incorporated 137Cs exceeding 6845 Bq.