title: Activated oxygen species at the origin of chromosome breakage and sister-chromatid exchanges.
mesh_terms: D002478:Cells, Cultured; D002869:Chromosome Aberrations; D003434:Crossing Over, Genetic / Q000187:drug effects*; D005609:Free Radicals; D006801:Humans; D006878:Hydroxides; D017665:Hydroxyl Radical; D008214:Lymphocytes / Q000187:drug effects* / Q000502:physiology / Q000528:radiation effects; D012854:Sister Chromatid Exchange / Q000187:drug effects* / Q000528:radiation effects; D013482:Superoxide Dismutase / Q000494:pharmacology; D014466:Ultraviolet Rays
chemical_list: D005609:Free Radicals; D006878:Hydroxides; D017665:Hydroxyl Radical; D013482:Superoxide Dismutase