GSTM1 and anemia (phenotype): This subject was a 69-year-old woman who had microcytic anemia (Hb 11.8 g/dL, mean corpuscular volume, MCV, 77.0 fL) with a TSAT level of 6.0%, a hepcidin level of 0.8 nM, a ferritin level of 24.0 μg/L, and no signs of inflammation (CRP 1.6 mg/L).