Results showed a moderate microcytic hypochromic anemia of the normoregenerative type (Hb = 7.8 g/dL, Mean cell volume (MCV) =76.2 fL, Mean cell hemoglobin (MCH) = 25.7 pg, MCHC = 33.8 g/dL, reticulocytes = 1.5%) and severe thrombocytopenia (platelet count 7 × 109/L). The gene discussed is GSTM1; the disease is anemia (phenotype).