G-CSF’s recommended dosage regimen is 230 μg/m2/day for 2 weeks (Frampton et al., 1994), while 6 mg of PEGylated G-CSF is administered once per cycle of chemotherapy as a prophylactic and therapeutic measure against neutropenia (Rifkin et al., 2010). The gene discussed is CSF3; the disease is Decreased total neutrophil count.