nta enhanced the induction of sce by pbcro4 and pbso4 even in the presence , in the preincubation solution and in the medium used to treat the cells , of na+ and k+ concentrations largely exceeding ( e.g. , 10 ( 2 ) -10 ( 6 ) times ) those of the genotoxic metals .
C0037211
sce
C0007634
cells