‘A Survey of ABO, Rhesus (D) Antigen and Haemoglobin Genes Variants in Oyo State, Nigeria’, NJPS, vol. 30, nr. 1, pp. 125–129, mei 2021, Geraadpleegd: 8 juli 2026. [Online]. Beschikbaar op: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1843