Serial analyses of absolute numbers of NK cells per microliter PB in CML patients at diagnosis, pre-MMR, MMR, MR^4.5, and TFR. Patients 1 through 8 showing the absolute number of CD3⁻CD56^dimCD16^br cells per microliter (blue) against BCR-ABL1 (red) over time. Duration of treatment with TKI is indicated in months (mo) from diagnosis.