GSTM1 and hemoglobinopathy: The American College of Obstetricians and Gynecologists (ACOG)’s Committee on Genetics previously recommended that Hb electrophoresis should be performed following a CBC with low mean corpuscular hemoglobin (MCH) concentration or mean corpuscular volume (MCV) or if there is suspicion of hemoglobinopathy based on ethnicity (African, Mediterranean, Middle Eastern, Southeast Asian, or West Indian descent), although it does not dictate which electrophoresis method (CZE, cellulose-acetate electrophoresis or IEF) [36].