GSTM1 and anemia (phenotype): RPR and TPHA were both positive with titers of 1:32, and FBC showed microcytic, hypochromic anemia (Hb 10.2 g/dL, MCV 66.7 fL, MCH 21.3 pg) and leukocytosis of 17 × 103/μL and lymphocytosis of 71%.