In a study by Pirinçci et al.(12) that included data before 2001 in 465 pregnant women in Elazığ, it was shown that 42.4% (n=197) of patients had anemia (Hb levels below 11 g/dL); 44.8% of these were observed in the first trimester. The gene discussed is GSTM1; the disease is anemia.