Etura, J. E., Effiong , U. I., Asemota, E. A., & Okoroiwu, H. U. (2024). ABO Phenotypes, Rhesus and Kell2 antigens of Blood donors attending University of Calabar Teaching Hospital. The Nigerian Health Journal, 24(1), 1010–1016. https://doi.org/10.60787/tnhj.v24i1.658