Obaid, H. , Wajid, B. , Haider, N. , Zafrullah, M.. "Comparison of Diagnostic Performance of Soluble Transferrin Receptor and Soluble Transferrin Receptor-Ferritin Index Tests in the Diagnosis of Iron Deficiency Anemia". World Academy of Science, Engineering and Technology, Open Science Index 132, International Journal of Medical and Health Sciences (2017), 11(12), 690 - 695.