GSTM1 and Iron deficiency anemia: The initial lab results showed an iron deficiency anemia (Hb 12.0 g/dl, normal 13–17 g Hb/dl; iron 30 μg/dl, normal 40-160 μg/dl; ferritin 19 ng/ml, normal 34–310 ng/ml), a blood eosinophilia of 15% (normal 2-4%) with absolute eosinophil counts of 1200/μl (normal < 400/μl) and an increased total IgE level in serum (289U/ml, normal <100).