DHCR7-DT and hyperinsulinemic hypoglycemia, familial, 4: The median frequencies (GPI-AP deficiency frequency) of proaerolysin-resistant leukemic CFC formation for M1 and M2 were 1.20% and 4.71% (ranging from 0.27 to 3.02% and 2.88 to 6.46%) respectively; however, the median frequencies (GPI-AP deficiency frequency) of proaerolysin-resistant non-leukemic CFC formation were 0.009% and 0.029% (ranging from 0.004% to 0.013% and 0.007% to 0.075%) respectively (Figure 3C).