The aim of this study was to evaluate the oxidative parameters of erythrocytes and genotoxicity in leukocytes of patients with breastcancer.Oxidativeparametersweredetectedbyspectrophotometryandgenotoxicdamagebysinglecellgelelectrophoresis. Twenty-eight women with breast cancer were monitored before chemotherapy and after the second and fourth cycles of therapy withcyclophosphamideanddoxorubicin.Afterthefourthcy...