Evaluable cytogenetic and molecular responses to different TKI modalities at 3- and 6-mo follow-up (imatinib 400, imatinib 800, nilotinib, and dasatinib). (A) Cytogenetic responses at 3 mo. (B) Molecular responses at 3 mo. * indicates that the majority of patients in the imatinib 400 group did not have molecular response values, as these patients were enrolled in the year 2000-2001, when PCR was not routinely done. (C) Cytogenetic responses at 6 mo. (D) Molecular responses at 6 mo.