GSTM1 and anemia (phenotype): A 66 years old woman, presenting increasing asthenia, revealed at peripheral blood count a severe anemia (Hb 7.3 g/dL), a reduced white blood cell (WBC) count (2400/μL) with severe neutropenia (neutrophils 600/μL), and a normal platelet count (PLT 168.000/μL).