AIHA (Hb 5.4 g/dL, HCT 15.2%, serum bilirubin 3.31 mg/dL, serum unconjugated bilirubin 2.79 mg/dL, LDH 1590 UI/l, serum haptoglobin <5.5 mg/dL, positive DAT). This evidence concerns the gene GSTM1 and autoimmune hemolytic anemia.