GSTM1 and anemia (phenotype): The control compared to the normal accrued anemia, which was measured by numbers of red blood cells (RBC; normal mice versus control mice; 9.04 ± 0.68 M/μL versus 6.53 ± 0.44 M/μL; P = 0.02), hemoglobins (Hb; normal mice versus control mice; 16.91 ± 1.15 g/dL versus 10.6 ± 0.38 M/μL; P = 0.0001), and hematocrits (HCT; percentage of red blood cells in whole blood; normal mice versus control mice; 52.9 ± 4.32% versus 32.53 ± 2.68%; P = 0.03).