Anwar, M., Iqbal, H., Ahmed, T. A., Bashir, M., Ayyub, M., Ahmed, P., & Hashmi, K. (2016). Frequency of HLA DR2 in patients with severe and very severe aplastic anaemia. Pakistan Journal of Pathology, 17(1). Retrieved from https://www.pakjpath.com/index.php/Pak-J-Pathol/article/view/192