CSF3 and Decreased total leukocyte count: The sex ratio (female vs male) was 3.0 vs. 1.0, 2.7 vs. 1.0, 2.5 vs. 1.0, and 2.8 vs. 1.0 for all patients, patients with leukopenia, patients with G-CSF administration, and patients without G-CSF administration but with leukopenia, respectively.