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(A) Overall, projected survival (± 95% confidence interval) of our population of patients with chronic lymphocytic leukemia estimated according to Kaplan-Meier actuarial method. (B) Projected, actuarial survival (± 95% confidence interval) according to the IGHV genes mutational status (log rank test; χ2 = 58.3; P<0.001). These curves were plotted using Stata (version 11.0).
