title: Chemical protection against breaks induced in DNA of human and bacterial cells by x-irradiation.
mesh_terms: D002460:Cell Line / Q000528:radiation effects; D002499:Centrifugation, Density Gradient; D003543:Cysteamine; D004247:DNA / Q000528:radiation effects*; D004269:DNA, Bacterial / Q000528:radiation effects
chemical_list: D004269:DNA, Bacterial; D003543:Cysteamine; D004247:DNA