We also compared the duration of neutropenia (< 500 cells/μL), the incidence of grade 4 neutropenia (< 500 cells/μL), lowest neutrophil count (i.e., neutrophil nadir), and day of onset of the neutrophil nadir by type of G-CSF preparation (Fig. 3). The gene discussed is CSF3; the disease is Decreased total neutrophil count.